diff --git a/info4/kapitel-0/Logik.ipynb b/info4/kapitel-0/Logik.ipynb
index 7ac1ca5af7d43b983235bd1c4788fc28aba3b593..4b4978fd637f5d1bad67fa3eff5bbe514179a232 100644
--- a/info4/kapitel-0/Logik.ipynb
+++ b/info4/kapitel-0/Logik.ipynb
@@ -12,7 +12,7 @@
     "* Heinrich-Heine Universität Düsseldorf\n",
     "\n",
     "Grundlagen der Logik und Mengentheorie sind nicht im Skript.\n",
-    "Hier definieren wir einige Grundlagen und Notationen die im Skript verwendet werden.\n",
+    "Hier definieren wir einige Grundlagen und Notationen, die im Skript verwendet werden.\n",
     "Ein gutes Verständnis dieser Grundlagen und Notationen ist für das Verständnis des Skripts, aber auch anderer Teile der Informatik unumgänglich.\n",
     "\n",
     "Die Folien für diese Grundlagen sind als Jupyter Notebooks erstellt worden und im [Gitlab der Informatik](https://gitlab.cs.uni-duesseldorf.de/general/stups/prob-teaching-notebooks) erhältlich.\n"
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-       "<path fill=\"none\" stroke=\"#000000\" d=\"M310.997,-73.5C302.9723,-73.5 294.0335,-73.5 285.4691,-73.5\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"285.295,-70.0001 275.295,-73.5 285.2949,-77.0001 285.295,-70.0001\"/>\n",
+       "<path fill=\"none\" stroke=\"black\" d=\"M333.78,-73.5C325.83,-73.5 316.94,-73.5 308.41,-73.5\"/>\n",
+       "<polygon fill=\"black\" stroke=\"black\" points=\"308.27,-70 298.27,-73.5 308.27,-77 308.27,-70\"/>\n",
        "</g>\n",
        "<!-- Node11 -->\n",
        "<g id=\"node12\" class=\"node\">\n",
        "<title>Node11</title>\n",
-       "<polygon fill=\"#ffffff\" stroke=\"#000000\" points=\"311,-.5 311,-36.5 365,-36.5 365,-.5 311,-.5\"/>\n",
-       "<text text-anchor=\"middle\" x=\"338\" y=\"-14.8\" font-family=\"Times,serif\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
+       "<polygon fill=\"white\" stroke=\"black\" points=\"334,-0.5 334,-36.5 388,-36.5 388,-0.5 334,-0.5\"/>\n",
+       "<text text-anchor=\"middle\" x=\"361\" y=\"-14.8\" font-family=\"Times,serif\" font-size=\"14.00\">1</text>\n",
        "</g>\n",
        "<!-- Node11&#45;&gt;Node9 -->\n",
        "<g id=\"edge11\" class=\"edge\">\n",
        "<title>Node11&#45;&gt;Node9</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M310.997,-35.0018C302.5314,-40.1752 293.0484,-45.9704 284.0611,-51.4627\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"282.0027,-48.6187 275.295,-56.8197 285.6529,-54.5917 282.0027,-48.6187\"/>\n",
+       "<path fill=\"none\" stroke=\"black\" d=\"M333.78,-34.7C325.39,-39.89 315.96,-45.71 307.01,-51.25\"/>\n",
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        "</g>\n",
        "</g>\n",
        "</svg>"
@@ -800,7 +800,7 @@
     "\n",
     "Man nennt so eine Interpretation ein <b>Modell</b> für die Formel.\n",
     "\n",
-    "* eine Interpretation $i$ so dass $i(\\phi)={\\color{olive} TRUE}$ ist ein <b>Modell</b> für $\\phi$\n",
+    "* eine Interpretation $i$ so dass $i(\\phi)={\\color{olive}{TRUE}}$ ist ein <b>Modell</b> für $\\phi$\n",
     "* eine Formel $\\phi$ die mindestens ein Modell hat heißt <b>erfüllbar</b>\n",
     "* eine Formel $\\phi$ wo alle Interpretationen auch Modelle sind wird eine <b>Tautologie</b> genannt\n",
     "* eine Formel ohne Modell heißt <b>unerfüllbar</b> oder ein Widerspruch\n",
diff --git a/info4/kapitel-0/Mengentheorie.ipynb b/info4/kapitel-0/Mengentheorie.ipynb
index cd73a13428dc225e0be1c84c57601b035653c93b..327f7097067fc1ec4b644dddf357d7555396426a 100644
--- a/info4/kapitel-0/Mengentheorie.ipynb
+++ b/info4/kapitel-0/Mengentheorie.ipynb
@@ -5,15 +5,17 @@
    "metadata": {},
    "source": [
     "# Theoretische Informatik - Vorlesung 0 - Teil 2 Mengentheorie\n",
-    "April 2020\n",
-    "Michael Leuschel\n",
-    "Heinrich-Heine Universität Düsseldorf\n",
+    "\n",
+    "* April 2020\n",
+    "* Michael Leuschel\n",
+    "* Lehrstuhl Softwaretechnik und Programmiersprachen\n",
+    "* Heinrich-Heine Universität Düsseldorf\n",
     "\n",
     "Grundlagen der Logik und Mengentheorie sind nicht im Skript.\n",
     "Hier definieren wir einige Grundlagen und Notationen die im Skript verwendet werden.\n",
     "Ein gutes Verständnis dieser Grundlagen und Notationen ist für das Verständnis des Skripts, aber auch anderer Teile der Informatik unumgänglich.\n",
     "\n",
-    "Auswertung der Formeln erfolgt mit dem [Jupyter kernel](https://gitlab.cs.uni-duesseldorf.de/general/stups/prob2-jupyter-kernel) für [ProB](https://www3.hhu.de/stups/prob)\n",
+    "Auswertung der Formeln erfolgt mit dem [Jupyter Kernel](https://gitlab.cs.uni-duesseldorf.de/general/stups/prob2-jupyter-kernel) für [ProB](https://www3.hhu.de/stups/prob)\n",
     "\n",
     "\n",
     "Um dieses Notebook zu starten kann man entweder selber Jupyter und den [ProB Kernel](https://gitlab.cs.uni-duesseldorf.de/general/stups/prob2-jupyter-kernel) installieren.\n",
@@ -62,13 +64,13 @@
     "Sie hat keine Elemente:\n",
     " * $z = \\emptyset \\Leftrightarrow \\forall(a).(a\\not\\in z)$\n",
     "\n",
-    "Zwei Mengen $x$ und $y$ sind gleich gdw wenn sie die gleichen Elemente haben:\n",
+    "Zwei Mengen $x$ und $y$ sind gleich gdw sie die gleichen Elemente haben:\n",
     " * $\\forall(x,y).(x=y \\Leftrightarrow \\forall(a).(a\\in x \\Leftrightarrow a \\in y))$"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 17,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [
     {
@@ -80,7 +82,7 @@
        "FALSE"
       ]
      },
-     "execution_count": 17,
+     "execution_count": 1,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -91,7 +93,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 18,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [
     {
@@ -103,7 +105,7 @@
        "FALSE"
       ]
      },
-     "execution_count": 18,
+     "execution_count": 2,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -114,7 +116,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 19,
+   "execution_count": 3,
    "metadata": {},
    "outputs": [
     {
@@ -126,7 +128,7 @@
        "TRUE"
       ]
      },
-     "execution_count": 19,
+     "execution_count": 3,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -147,7 +149,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 20,
+   "execution_count": 4,
    "metadata": {},
    "outputs": [
     {
@@ -159,7 +161,7 @@
        "TRUE"
       ]
      },
-     "execution_count": 20,
+     "execution_count": 4,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -177,7 +179,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 22,
+   "execution_count": 5,
    "metadata": {},
    "outputs": [
     {
@@ -189,7 +191,7 @@
        "FALSE"
       ]
      },
-     "execution_count": 22,
+     "execution_count": 5,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -200,7 +202,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 23,
+   "execution_count": 6,
    "metadata": {},
    "outputs": [
     {
@@ -212,7 +214,7 @@
        "FALSE"
       ]
      },
-     "execution_count": 23,
+     "execution_count": 6,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -230,7 +232,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 24,
+   "execution_count": 7,
    "metadata": {},
    "outputs": [
     {
@@ -242,7 +244,7 @@
        "TRUE"
       ]
      },
-     "execution_count": 24,
+     "execution_count": 7,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -271,7 +273,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 25,
+   "execution_count": 8,
    "metadata": {},
    "outputs": [
     {
@@ -283,7 +285,7 @@
        "{2,3,5,7}"
       ]
      },
-     "execution_count": 25,
+     "execution_count": 8,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -294,7 +296,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 26,
+   "execution_count": 9,
    "metadata": {},
    "outputs": [
     {
@@ -306,7 +308,7 @@
        "{5}"
       ]
      },
-     "execution_count": 26,
+     "execution_count": 9,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -317,7 +319,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 27,
+   "execution_count": 10,
    "metadata": {},
    "outputs": [
     {
@@ -329,7 +331,7 @@
        "{2,3}"
       ]
      },
-     "execution_count": 27,
+     "execution_count": 10,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -351,7 +353,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 28,
+   "execution_count": 11,
    "metadata": {},
    "outputs": [
     {
@@ -363,7 +365,7 @@
        "{2,3,5}"
       ]
      },
-     "execution_count": 28,
+     "execution_count": 11,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -381,7 +383,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 29,
+   "execution_count": 12,
    "metadata": {},
    "outputs": [
     {
@@ -393,7 +395,7 @@
        "{a∣a > 10}"
       ]
      },
-     "execution_count": 29,
+     "execution_count": 12,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -404,7 +406,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 30,
+   "execution_count": 13,
    "metadata": {},
    "outputs": [
     {
@@ -416,7 +418,7 @@
        "{2}"
       ]
      },
-     "execution_count": 30,
+     "execution_count": 13,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -438,7 +440,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 31,
+   "execution_count": 14,
    "metadata": {},
    "outputs": [
     {
@@ -460,7 +462,7 @@
        "\ty = {2,5}"
       ]
      },
-     "execution_count": 31,
+     "execution_count": 14,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -471,7 +473,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 32,
+   "execution_count": 15,
    "metadata": {},
    "outputs": [
     {
@@ -493,7 +495,7 @@
        "\ty = {2,5}"
       ]
      },
-     "execution_count": 32,
+     "execution_count": 15,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -504,7 +506,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 33,
+   "execution_count": 16,
    "metadata": {},
    "outputs": [
     {
@@ -526,7 +528,7 @@
        "\ty = {2,5}"
       ]
      },
-     "execution_count": 33,
+     "execution_count": 16,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -544,7 +546,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 34,
+   "execution_count": 17,
    "metadata": {},
    "outputs": [
     {
@@ -556,7 +558,7 @@
        "{1,2,3,4,5,6,7,8,9,10}"
       ]
      },
-     "execution_count": 34,
+     "execution_count": 17,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -579,7 +581,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 35,
+   "execution_count": 18,
    "metadata": {},
    "outputs": [
     {
@@ -591,7 +593,7 @@
        "{2,3,44,55}"
       ]
      },
-     "execution_count": 35,
+     "execution_count": 18,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -602,7 +604,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 36,
+   "execution_count": 19,
    "metadata": {},
    "outputs": [
     {
@@ -614,7 +616,7 @@
        "{2,3,44,55}"
       ]
      },
-     "execution_count": 36,
+     "execution_count": 19,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -668,7 +670,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 37,
+   "execution_count": 20,
    "metadata": {},
    "outputs": [
     {
@@ -680,7 +682,7 @@
        "{1,3,7,9}"
       ]
      },
-     "execution_count": 37,
+     "execution_count": 20,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -691,7 +693,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 38,
+   "execution_count": 21,
    "metadata": {},
    "outputs": [
     {
@@ -703,7 +705,7 @@
        "{1,3,5,7,9,10}"
       ]
      },
-     "execution_count": 38,
+     "execution_count": 21,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -714,7 +716,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 39,
+   "execution_count": 22,
    "metadata": {},
    "outputs": [
     {
@@ -726,7 +728,7 @@
        "{1,2,3,4,6,7,8,9}"
       ]
      },
-     "execution_count": 39,
+     "execution_count": 22,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -737,7 +739,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 40,
+   "execution_count": 23,
    "metadata": {},
    "outputs": [
     {
@@ -749,7 +751,7 @@
        "{1,3,7,9}"
       ]
      },
-     "execution_count": 40,
+     "execution_count": 23,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -779,9 +781,23 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 24,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/markdown": [
+       "$\\renewcommand{\\emptyset}{\\mathord\\varnothing}\\emptyset$"
+      ],
+      "text/plain": [
+       "∅"
+      ]
+     },
+     "execution_count": 24,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "{2,4} ∩ (ℤ \\ {2,4})"
    ]
@@ -797,7 +813,7 @@
     "* $\\forall a. a\\in x \\Rightarrow a \\in y$\n",
     "\n",
     "Wir benutzen diese Schreibweise $x \\subseteq y$.\n",
-    "In diesem Fall ist $y$ auch eine Obermenge von $y$, geschrieben als $y \\supseteq x$.\n",
+    "In diesem Fall ist $y$ auch eine Obermenge von $x$, geschrieben als $y \\supseteq x$.\n",
     "\n",
     "Für die echte Teilmenge benutzen wir folgende Schreibweise und Definition:\n",
     "* $x \\subset y$ $\\Leftrightarrow$ $(x \\subseteq y \\wedge x\\neq y)$."
@@ -805,7 +821,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 41,
+   "execution_count": 25,
    "metadata": {},
    "outputs": [
     {
@@ -825,7 +841,7 @@
        "\ty = (1 ‥ 5)"
       ]
      },
-     "execution_count": 41,
+     "execution_count": 25,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -836,7 +852,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 42,
+   "execution_count": 26,
    "metadata": {},
    "outputs": [
     {
@@ -848,7 +864,7 @@
        "FALSE"
       ]
      },
-     "execution_count": 42,
+     "execution_count": 26,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -859,7 +875,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 43,
+   "execution_count": 27,
    "metadata": {},
    "outputs": [
     {
@@ -871,7 +887,7 @@
        "TRUE"
       ]
      },
-     "execution_count": 43,
+     "execution_count": 27,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -892,7 +908,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 44,
+   "execution_count": 28,
    "metadata": {},
    "outputs": [
     {
@@ -904,7 +920,7 @@
        "3"
       ]
      },
-     "execution_count": 44,
+     "execution_count": 28,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -915,7 +931,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 45,
+   "execution_count": 29,
    "metadata": {},
    "outputs": [
     {
@@ -927,7 +943,7 @@
        "3"
       ]
      },
-     "execution_count": 45,
+     "execution_count": 29,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -938,7 +954,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 46,
+   "execution_count": 30,
    "metadata": {},
    "outputs": [
     {
@@ -950,7 +966,7 @@
        "0"
       ]
      },
-     "execution_count": 46,
+     "execution_count": 30,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -968,7 +984,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 47,
+   "execution_count": 31,
    "metadata": {},
    "outputs": [
     {
@@ -1015,7 +1031,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 48,
+   "execution_count": 32,
    "metadata": {},
    "outputs": [
     {
@@ -1047,7 +1063,7 @@
        "\tO = 0"
       ]
      },
-     "execution_count": 48,
+     "execution_count": 32,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1065,7 +1081,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 49,
+   "execution_count": 33,
    "metadata": {},
    "outputs": [
     {
@@ -1097,7 +1113,7 @@
        "\tO = 3"
       ]
      },
-     "execution_count": 49,
+     "execution_count": 33,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1116,7 +1132,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 50,
+   "execution_count": 34,
    "metadata": {},
    "outputs": [
     {
@@ -1148,7 +1164,7 @@
        "\tO = 4"
       ]
      },
-     "execution_count": 50,
+     "execution_count": 34,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1167,7 +1183,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 51,
+   "execution_count": 35,
    "metadata": {},
    "outputs": [
     {
@@ -1199,7 +1215,7 @@
        "\tO = 0"
       ]
      },
-     "execution_count": 51,
+     "execution_count": 35,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1220,7 +1236,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 52,
+   "execution_count": 36,
    "metadata": {},
    "outputs": [
     {
@@ -1232,7 +1248,7 @@
        "{(9↦5↦6↦7↦1↦0↦8↦2)}"
       ]
      },
-     "execution_count": 52,
+     "execution_count": 36,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1248,7 +1264,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 53,
+   "execution_count": 37,
    "metadata": {},
    "outputs": [
     {
@@ -1263,7 +1279,7 @@
        "9\t5\t6\t7\t1\t0\t8\t2\n"
       ]
      },
-     "execution_count": 53,
+     "execution_count": 37,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1300,7 +1316,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 54,
+   "execution_count": 38,
    "metadata": {},
    "outputs": [
     {
@@ -1315,7 +1331,7 @@
        "2\t0\t3\t4\t1\t8\t9\n"
       ]
      },
-     "execution_count": 54,
+     "execution_count": 38,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1353,7 +1369,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 55,
+   "execution_count": 39,
    "metadata": {},
    "outputs": [
     {
@@ -1365,7 +1381,7 @@
        "3"
       ]
      },
-     "execution_count": 55,
+     "execution_count": 39,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1376,7 +1392,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 56,
+   "execution_count": 40,
    "metadata": {},
    "outputs": [
     {
@@ -1388,7 +1404,7 @@
        "1"
       ]
      },
-     "execution_count": 56,
+     "execution_count": 40,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1399,7 +1415,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 57,
+   "execution_count": 41,
    "metadata": {},
    "outputs": [
     {
@@ -1411,7 +1427,7 @@
        "2"
       ]
      },
-     "execution_count": 57,
+     "execution_count": 41,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1422,7 +1438,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 58,
+   "execution_count": 42,
    "metadata": {},
    "outputs": [
     {
@@ -1434,7 +1450,7 @@
        "TRUE"
       ]
      },
-     "execution_count": 58,
+     "execution_count": 42,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1445,7 +1461,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 59,
+   "execution_count": 43,
    "metadata": {},
    "outputs": [
     {
@@ -1457,7 +1473,7 @@
        "FALSE"
       ]
      },
-     "execution_count": 59,
+     "execution_count": 43,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1478,7 +1494,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 60,
+   "execution_count": 44,
    "metadata": {},
    "outputs": [
     {
@@ -1490,7 +1506,7 @@
        "FALSE"
       ]
      },
-     "execution_count": 60,
+     "execution_count": 44,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1501,7 +1517,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 61,
+   "execution_count": 45,
    "metadata": {},
    "outputs": [
     {
@@ -1513,7 +1529,7 @@
        "0"
       ]
      },
-     "execution_count": 61,
+     "execution_count": 45,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1524,7 +1540,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 62,
+   "execution_count": 46,
    "metadata": {},
    "outputs": [
     {
@@ -1536,7 +1552,7 @@
        "1"
       ]
      },
-     "execution_count": 62,
+     "execution_count": 46,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1547,7 +1563,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 63,
+   "execution_count": 47,
    "metadata": {},
    "outputs": [
     {
@@ -1559,7 +1575,7 @@
        "TRUE"
       ]
      },
-     "execution_count": 63,
+     "execution_count": 47,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1570,7 +1586,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 64,
+   "execution_count": 48,
    "metadata": {},
    "outputs": [
     {
@@ -1582,7 +1598,7 @@
        "FALSE"
       ]
      },
-     "execution_count": 64,
+     "execution_count": 48,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1593,7 +1609,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 65,
+   "execution_count": 49,
    "metadata": {},
    "outputs": [
     {
@@ -1605,7 +1621,7 @@
        "TRUE"
       ]
      },
-     "execution_count": 65,
+     "execution_count": 49,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1624,7 +1640,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 66,
+   "execution_count": 50,
    "metadata": {},
    "outputs": [
     {
@@ -1636,7 +1652,7 @@
        "{∅,{1},{1,2},{2}}"
       ]
      },
-     "execution_count": 66,
+     "execution_count": 50,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1647,7 +1663,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 67,
+   "execution_count": 51,
    "metadata": {},
    "outputs": [
     {
@@ -1659,7 +1675,7 @@
        "{∅}"
       ]
      },
-     "execution_count": 67,
+     "execution_count": 51,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1670,7 +1686,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 68,
+   "execution_count": 52,
    "metadata": {},
    "outputs": [
     {
@@ -1682,7 +1698,7 @@
        "{∅,{1},{1,2},{1,3},{2},{1,2,3},{2,3},{3}}"
       ]
      },
-     "execution_count": 68,
+     "execution_count": 52,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1693,7 +1709,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 69,
+   "execution_count": 53,
    "metadata": {},
    "outputs": [
     {
@@ -1722,7 +1738,7 @@
        "{3}\n"
       ]
      },
-     "execution_count": 69,
+     "execution_count": 53,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1733,7 +1749,7 @@
   },
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    "cell_type": "code",
-   "execution_count": 70,
+   "execution_count": 54,
    "metadata": {},
    "outputs": [
     {
@@ -1754,7 +1770,7 @@
        "{{1}}\n"
       ]
      },
-     "execution_count": 70,
+     "execution_count": 54,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1765,7 +1781,7 @@
   },
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    "cell_type": "code",
-   "execution_count": 71,
+   "execution_count": 55,
    "metadata": {},
    "outputs": [
     {
@@ -1777,7 +1793,7 @@
        "8"
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-     "execution_count": 71,
+     "execution_count": 55,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1788,7 +1804,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 72,
+   "execution_count": 56,
    "metadata": {},
    "outputs": [
     {
@@ -1800,7 +1816,7 @@
        "1024"
       ]
      },
-     "execution_count": 72,
+     "execution_count": 56,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1811,7 +1827,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 73,
+   "execution_count": 57,
    "metadata": {},
    "outputs": [
     {
@@ -1823,7 +1839,7 @@
        "1267650600228229401496703205376"
       ]
      },
-     "execution_count": 73,
+     "execution_count": 57,
      "metadata": {},
      "output_type": "execute_result"
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@@ -1834,7 +1850,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 74,
+   "execution_count": 58,
    "metadata": {},
    "outputs": [
     {
@@ -1846,7 +1862,7 @@
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       ]
      },
-     "execution_count": 74,
+     "execution_count": 58,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1857,7 +1873,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 75,
+   "execution_count": 59,
    "metadata": {},
    "outputs": [
     {
@@ -1869,7 +1885,7 @@
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       ]
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-     "execution_count": 75,
+     "execution_count": 59,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1915,7 +1931,7 @@
     "## Relationen vs Prädikate\n",
     "Eine Relation ist die explizite Darstellung eines Prädikats als Menge:\n",
     "  \n",
-    "* Prädikate können mit logischen Junktoren und Quantoren verarabeitet werden:\n",
+    "* Prädikate können mit logischen Junktoren und Quantoren verarbeitet werden:\n",
     " * $\\exists x. is\\_rich(x)$, $\\forall x.(is\\_poor(x) \\Rightarrow \\neg is\\_rich(x))$\n",
     "  \n",
     "* Relationen können mit mengentheoretischen Operationen verarbeitet werden:\n",
@@ -1938,7 +1954,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 78,
+   "execution_count": 60,
    "metadata": {},
    "outputs": [
     {
@@ -1950,7 +1966,7 @@
        "{(1↦4),(1↦5),(2↦4),(2↦5)}"
       ]
      },
-     "execution_count": 78,
+     "execution_count": 60,
      "metadata": {},
      "output_type": "execute_result"
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@@ -1961,7 +1977,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 79,
+   "execution_count": 61,
    "metadata": {},
    "outputs": [
     {
@@ -1973,7 +1989,7 @@
        "{(1↦4),(2↦4)}"
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      },
-     "execution_count": 79,
+     "execution_count": 61,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1984,7 +2000,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 80,
+   "execution_count": 62,
    "metadata": {},
    "outputs": [
     {
@@ -1996,7 +2012,7 @@
        "{(1↦FALSE),(1↦TRUE),(2↦FALSE),(2↦TRUE)}"
       ]
      },
-     "execution_count": 80,
+     "execution_count": 62,
      "metadata": {},
      "output_type": "execute_result"
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@@ -2007,7 +2023,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 81,
+   "execution_count": 63,
    "metadata": {},
    "outputs": [
     {
@@ -2019,7 +2035,7 @@
        "{(1↦1),(1↦2),(1↦3),(2↦1),(2↦2),(2↦3),(3↦1),(3↦2),(3↦3)}"
       ]
      },
-     "execution_count": 81,
+     "execution_count": 63,
      "metadata": {},
      "output_type": "execute_result"
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@@ -2030,7 +2046,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 82,
+   "execution_count": 64,
    "metadata": {},
    "outputs": [
     {
@@ -2042,7 +2058,7 @@
        "100"
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-     "execution_count": 82,
+     "execution_count": 64,
      "metadata": {},
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@@ -2060,7 +2076,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 83,
+   "execution_count": 65,
    "metadata": {},
    "outputs": [
     {
@@ -2072,7 +2088,7 @@
        "{(2↦3)}"
       ]
      },
-     "execution_count": 83,
+     "execution_count": 65,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2083,7 +2099,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 86,
+   "execution_count": 66,
    "metadata": {},
    "outputs": [
     {
@@ -2095,7 +2111,7 @@
        "{(3↦2)}"
       ]
      },
-     "execution_count": 86,
+     "execution_count": 66,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2126,7 +2142,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 87,
+   "execution_count": 67,
    "metadata": {},
    "outputs": [
     {
@@ -2138,7 +2154,7 @@
        "{(0↦1),(0↦2),(0↦3),(0↦4),(0↦5),(0↦6),(0↦7),(0↦8),(0↦9),(1↦2),(1↦3),(1↦4),(1↦5),(1↦6),(1↦7),(1↦8),(1↦9),(2↦3),(2↦4),(2↦5),(2↦6),(2↦7),(2↦8),(2↦9),(3↦4),(3↦5),(3↦6),(3↦7),(3↦8),(3↦9),(4↦5),(4↦6),(4↦7),(4↦8),(4↦9),(5↦6),(5↦7),(5↦8),(5↦9),(6↦7),(6↦8),(6↦9),(7↦8),(7↦9),(8↦9)}"
       ]
      },
-     "execution_count": 87,
+     "execution_count": 67,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2157,7 +2173,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 88,
+   "execution_count": 68,
    "metadata": {},
    "outputs": [
     {
@@ -2169,7 +2185,7 @@
        "{(2↦1),(4↦2),(6↦3),(8↦4),(10↦5)}"
       ]
      },
-     "execution_count": 88,
+     "execution_count": 68,
      "metadata": {},
      "output_type": "execute_result"
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@@ -2187,7 +2203,7 @@
   },
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-   "execution_count": 89,
+   "execution_count": 69,
    "metadata": {},
    "outputs": [
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+       "<text text-anchor=\"middle\" x=\"171\" y=\"-188.3\" font-family=\"Times,serif\" font-size=\"14.00\">3</text>\n",
        "</g>\n",
        "<!-- 6&#45;&gt;3 -->\n",
-       "<g id=\"edge6\" class=\"edge\"><title>6&#45;&gt;3</title>\n",
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-       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"174.5,-226.05 171,-216.05 167.5,-226.05 174.5,-226.05\"/>\n",
-       "<text text-anchor=\"middle\" x=\"183.053\" y=\"-238.8\" font-family=\"Times,serif\" font-size=\"14.00\">halb</text>\n",
+       "<g id=\"edge3\" class=\"edge\">\n",
+       "<title>6&#45;&gt;3</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M171,-260.8C171,-249.16 171,-233.55 171,-220.24\"/>\n",
+       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"174.5,-220.18 171,-210.18 167.5,-220.18 174.5,-220.18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"186.5\" y=\"-231.8\" font-family=\"Times,serif\" font-size=\"14.00\">halb</text>\n",
        "</g>\n",
        "<!-- 1 -->\n",
-       "<g id=\"node13\" class=\"node\"><title>1</title>\n",
-       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"126,-36 72,-36 72,-0 126,-0 126,-36\"/>\n",
-       "<text text-anchor=\"middle\" x=\"99\" y=\"-13.8\" font-family=\"Times,serif\" font-size=\"14.00\">1</text>\n",
+       "<g id=\"node8\" class=\"node\">\n",
+       "<title>1</title>\n",
+       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"126,-36 72,-36 72,0 126,0 126,-36\"/>\n",
+       "<text text-anchor=\"middle\" x=\"99\" y=\"-14.3\" font-family=\"Times,serif\" font-size=\"14.00\">1</text>\n",
        "</g>\n",
        "<!-- 2&#45;&gt;1 -->\n",
-       "<g id=\"edge10\" class=\"edge\"><title>2&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"firebrick\" d=\"M99,-89.614C99,-77.2403 99,-60.3686 99,-46.2198\"/>\n",
-       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"102.5,-46.0504 99,-36.0504 95.5001,-46.0504 102.5,-46.0504\"/>\n",
-       "<text text-anchor=\"middle\" x=\"111.053\" y=\"-58.8\" font-family=\"Times,serif\" font-size=\"14.00\">halb</text>\n",
+       "<g id=\"edge5\" class=\"edge\">\n",
+       "<title>2&#45;&gt;1</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M99,-86.8C99,-75.16 99,-59.55 99,-46.24\"/>\n",
+       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"102.5,-46.18 99,-36.18 95.5,-46.18 102.5,-46.18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"114.5\" y=\"-57.8\" font-family=\"Times,serif\" font-size=\"14.00\">halb</text>\n",
        "</g>\n",
        "</g>\n",
        "</svg>"
@@ -2281,7 +2310,7 @@
        "<Dot visualization: expr_as_graph [(\"halb\",{a,b|a:1..10 & b:1..10 & b*2=a})]>"
       ]
      },
-     "execution_count": 89,
+     "execution_count": 69,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2300,7 +2329,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 90,
+   "execution_count": 70,
    "metadata": {},
    "outputs": [
     {
@@ -2312,7 +2341,7 @@
        "{(1↦\"nein\"),(2↦\"nein\"),(3↦\"ja\"),(4↦\"nein\"),(5↦\"nein\"),(6↦\"ja\"),(7↦\"nein\")}"
       ]
      },
-     "execution_count": 90,
+     "execution_count": 70,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2323,7 +2352,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 91,
+   "execution_count": 71,
    "metadata": {},
    "outputs": [
     {
@@ -2332,100 +2361,116 @@
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        "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
        " \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
-       "<!-- Generated by graphviz version 2.28.0 (20110509.1545)\n",
+       "<!-- Generated by graphviz version 2.44.1 (0)\n",
        " -->\n",
        "<!-- Title: state Pages: 1 -->\n",
-       "<svg width=\"494pt\" height=\"134pt\"\n",
-       " viewBox=\"0.00 0.00 494.00 134.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
-       "<g id=\"graph1\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 130)\">\n",
+       "<svg width=\"499pt\" height=\"131pt\"\n",
+       " viewBox=\"0.00 0.00 499.00 131.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 127)\">\n",
        "<title>state</title>\n",
-       "<polygon fill=\"white\" stroke=\"white\" points=\"-4,5 -4,-130 491,-130 491,5 -4,5\"/>\n",
+       "<polygon fill=\"white\" stroke=\"transparent\" points=\"-4,4 -4,-127 495,-127 495,4 -4,4\"/>\n",
        "<!-- 7 -->\n",
-       "<g id=\"node1\" class=\"node\"><title>7</title>\n",
-       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"54,-126 0,-126 0,-90 54,-90 54,-126\"/>\n",
-       "<text text-anchor=\"middle\" x=\"27\" y=\"-103.8\" font-family=\"Times,serif\" font-size=\"14.00\">7</text>\n",
+       "<g id=\"node1\" class=\"node\">\n",
+       "<title>7</title>\n",
+       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"54,-123 0,-123 0,-87 54,-87 54,-123\"/>\n",
+       "<text text-anchor=\"middle\" x=\"27\" y=\"-101.3\" font-family=\"Times,serif\" font-size=\"14.00\">7</text>\n",
        "</g>\n",
        "<!-- &quot;nein&quot; -->\n",
-       "<g id=\"node3\" class=\"node\"><title>&quot;nein&quot;</title>\n",
-       "<polygon fill=\"#fff68f\" stroke=\"#fff68f\" points=\"198,-36 144,-36 144,-0 198,-0 198,-36\"/>\n",
-       "<text text-anchor=\"middle\" x=\"171\" y=\"-13.8\" font-family=\"Times,serif\" font-size=\"14.00\">&quot;nein&quot;</text>\n",
+       "<g id=\"node2\" class=\"node\">\n",
+       "<title>&quot;nein&quot;</title>\n",
+       "<polygon fill=\"#fff68f\" stroke=\"#fff68f\" points=\"201.5,-36 140.5,-36 140.5,0 201.5,0 201.5,-36\"/>\n",
+       "<text text-anchor=\"middle\" x=\"171\" y=\"-14.3\" font-family=\"Times,serif\" font-size=\"14.00\">&quot;nein&quot;</text>\n",
        "</g>\n",
        "<!-- 7&#45;&gt;&quot;nein&quot; -->\n",
-       "<g id=\"edge2\" class=\"edge\"><title>7&#45;&gt;&quot;nein&quot;</title>\n",
-       "<path fill=\"none\" stroke=\"firebrick\" d=\"M40.5497,-89.8128C50.2969,-78.3881 64.3106,-63.7485 79.2384,-54 95.9456,-43.0894 116.554,-34.8399 134.006,-29.0985\"/>\n",
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-       "<text text-anchor=\"middle\" x=\"97.8808\" y=\"-58.8\" font-family=\"Times,serif\" font-size=\"14.00\">teilbar</text>\n",
+       "<g id=\"edge1\" class=\"edge\">\n",
+       "<title>7&#45;&gt;&quot;nein&quot;</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M33.8,-86.94C38.95,-76.08 47.01,-62.5 58,-54 78.95,-37.81 107.46,-29.05 130.6,-24.34\"/>\n",
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+       "<text text-anchor=\"middle\" x=\"82\" y=\"-57.8\" font-family=\"Times,serif\" font-size=\"14.00\">teilbar</text>\n",
        "</g>\n",
        "<!-- 6 -->\n",
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+       "<g id=\"node3\" class=\"node\">\n",
+       "<title>6</title>\n",
+       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"414,-123 360,-123 360,-87 414,-87 414,-123\"/>\n",
+       "<text text-anchor=\"middle\" x=\"387\" y=\"-101.3\" font-family=\"Times,serif\" font-size=\"14.00\">6</text>\n",
        "</g>\n",
        "<!-- &quot;ja&quot; -->\n",
-       "<g id=\"node6\" class=\"node\"><title>&quot;ja&quot;</title>\n",
-       "<polygon fill=\"#fff68f\" stroke=\"#fff68f\" points=\"450,-36 396,-36 396,-0 450,-0 450,-36\"/>\n",
-       "<text text-anchor=\"middle\" x=\"423\" y=\"-13.8\" font-family=\"Times,serif\" font-size=\"14.00\">&quot;ja&quot;</text>\n",
+       "<g id=\"node4\" class=\"node\">\n",
+       "<title>&quot;ja&quot;</title>\n",
+       "<polygon fill=\"#fff68f\" stroke=\"#fff68f\" points=\"450,-36 396,-36 396,0 450,0 450,-36\"/>\n",
+       "<text text-anchor=\"middle\" x=\"423\" y=\"-14.3\" font-family=\"Times,serif\" font-size=\"14.00\">&quot;ja&quot;</text>\n",
        "</g>\n",
        "<!-- 6&#45;&gt;&quot;ja&quot; -->\n",
-       "<g id=\"edge4\" class=\"edge\"><title>6&#45;&gt;&quot;ja&quot;</title>\n",
-       "<path fill=\"none\" stroke=\"firebrick\" d=\"M390.262,-89.8625C392.604,-79.2679 396.233,-65.5374 401.238,-54 402.548,-50.9806 404.09,-47.9162 405.738,-44.9205\"/>\n",
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-       "<text text-anchor=\"middle\" x=\"419.881\" y=\"-58.8\" font-family=\"Times,serif\" font-size=\"14.00\">teilbar</text>\n",
+       "<g id=\"edge2\" class=\"edge\">\n",
+       "<title>6&#45;&gt;&quot;ja&quot;</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M384.71,-86.66C384.11,-76.72 384.61,-64.22 389,-54 390.49,-50.53 392.5,-47.2 394.79,-44.08\"/>\n",
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        "</g>\n",
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+       "<g id=\"node5\" class=\"node\">\n",
+       "<title>5</title>\n",
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+       "<text text-anchor=\"middle\" x=\"99\" y=\"-101.3\" font-family=\"Times,serif\" font-size=\"14.00\">5</text>\n",
        "</g>\n",
        "<!-- 5&#45;&gt;&quot;nein&quot; -->\n",
-       "<g id=\"edge6\" class=\"edge\"><title>5&#45;&gt;&quot;nein&quot;</title>\n",
-       "<path fill=\"none\" stroke=\"firebrick\" d=\"M107.669,-89.8968C113.568,-79.0619 121.966,-65.0589 131.238,-54 134.396,-50.2342 137.968,-46.5154 141.643,-42.9883\"/>\n",
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-       "<text text-anchor=\"middle\" x=\"149.881\" y=\"-58.8\" font-family=\"Times,serif\" font-size=\"14.00\">teilbar</text>\n",
+       "<g id=\"edge3\" class=\"edge\">\n",
+       "<title>5&#45;&gt;&quot;nein&quot;</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M103.07,-86.93C106.17,-76.59 111.25,-63.6 119,-54 122.77,-49.34 127.32,-45.06 132.15,-41.22\"/>\n",
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+       "<title>4</title>\n",
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+       "<text text-anchor=\"middle\" x=\"171\" y=\"-101.3\" font-family=\"Times,serif\" font-size=\"14.00\">4</text>\n",
        "</g>\n",
        "<!-- 4&#45;&gt;&quot;nein&quot; -->\n",
-       "<g id=\"edge8\" class=\"edge\"><title>4&#45;&gt;&quot;nein&quot;</title>\n",
-       "<path fill=\"none\" stroke=\"firebrick\" d=\"M171,-89.614C171,-77.2403 171,-60.3686 171,-46.2198\"/>\n",
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-       "<text text-anchor=\"middle\" x=\"188.881\" y=\"-58.8\" font-family=\"Times,serif\" font-size=\"14.00\">teilbar</text>\n",
+       "<g id=\"edge4\" class=\"edge\">\n",
+       "<title>4&#45;&gt;&quot;nein&quot;</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M171,-86.8C171,-75.16 171,-59.55 171,-46.24\"/>\n",
+       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"174.5,-46.18 171,-36.18 167.5,-46.18 174.5,-46.18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"195\" y=\"-57.8\" font-family=\"Times,serif\" font-size=\"14.00\">teilbar</text>\n",
        "</g>\n",
        "<!-- 3 -->\n",
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+       "<g id=\"node7\" class=\"node\">\n",
+       "<title>3</title>\n",
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+       "<text text-anchor=\"middle\" x=\"459\" y=\"-101.3\" font-family=\"Times,serif\" font-size=\"14.00\">3</text>\n",
        "</g>\n",
        "<!-- 3&#45;&gt;&quot;ja&quot; -->\n",
-       "<g id=\"edge10\" class=\"edge\"><title>3&#45;&gt;&quot;ja&quot;</title>\n",
-       "<path fill=\"none\" stroke=\"firebrick\" d=\"M451.888,-89.614C446.726,-76.9977 439.652,-59.7052 433.796,-45.3907\"/>\n",
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+       "<g id=\"edge5\" class=\"edge\">\n",
+       "<title>3&#45;&gt;&quot;ja&quot;</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M451.71,-86.8C446.69,-74.93 439.91,-58.93 434.2,-45.45\"/>\n",
+       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"437.4,-44.02 430.27,-36.18 430.95,-46.75 437.4,-44.02\"/>\n",
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+       "<g id=\"node8\" class=\"node\">\n",
+       "<title>2</title>\n",
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        "<!-- 2&#45;&gt;&quot;nein&quot; -->\n",
-       "<g id=\"edge12\" class=\"edge\"><title>2&#45;&gt;&quot;nein&quot;</title>\n",
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+       "<g id=\"edge6\" class=\"edge\">\n",
+       "<title>2&#45;&gt;&quot;nein&quot;</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M238.11,-86.98C234.54,-76.67 228.94,-63.68 221,-54 217.51,-49.75 213.39,-45.79 209.02,-42.17\"/>\n",
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+       "<text text-anchor=\"middle\" x=\"253\" y=\"-57.8\" font-family=\"Times,serif\" font-size=\"14.00\">teilbar</text>\n",
        "</g>\n",
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+       "<g id=\"node9\" class=\"node\">\n",
+       "<title>1</title>\n",
+       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"342,-123 288,-123 288,-87 342,-87 342,-123\"/>\n",
+       "<text text-anchor=\"middle\" x=\"315\" y=\"-101.3\" font-family=\"Times,serif\" font-size=\"14.00\">1</text>\n",
        "</g>\n",
        "<!-- 1&#45;&gt;&quot;nein&quot; -->\n",
-       "<g id=\"edge14\" class=\"edge\"><title>1&#45;&gt;&quot;nein&quot;</title>\n",
-       "<path fill=\"none\" stroke=\"firebrick\" d=\"M301.53,-89.8056C291.835,-78.3777 277.887,-63.7372 263,-54 246.263,-43.0528 225.601,-34.8001 208.102,-29.0661\"/>\n",
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+       "<g id=\"edge7\" class=\"edge\">\n",
+       "<title>1&#45;&gt;&quot;nein&quot;</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M307.14,-86.97C301.32,-76.11 292.44,-62.54 281,-54 260.8,-38.93 233.91,-30.22 211.77,-25.26\"/>\n",
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        "</g>\n",
        "</g>\n",
        "</svg>"
@@ -2434,7 +2479,7 @@
        "<Dot visualization: expr_as_graph [(\"teilbar\",{x,y|x:1..7 & (x mod 3=0 => y=\"ja\") & (x mod 3>0 => y=\"nein\")})]>"
       ]
      },
-     "execution_count": 91,
+     "execution_count": 71,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2447,12 +2492,12 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Das Kartesische Produkt stellt die Relation dar die immer wahr ist (für die angegebenen Basismengen). Als Graph ist dies der [vollständige Graph](https://de.wikipedia.org/wiki/Vollständiger_Graph) über die Basismengen:"
+    "Das Kartesische Produkt stellt die Relation dar, die immer wahr ist (für die angegebenen Basismengen). Als Graph ist dies der [vollständige Graph](https://de.wikipedia.org/wiki/Vollständiger_Graph) über die Basismengen:"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 92,
+   "execution_count": 72,
    "metadata": {},
    "outputs": [
     {
@@ -2461,7 +2506,7 @@
        "Preference changed: DOT_ENGINE = circo\n"
       ]
      },
-     "execution_count": 92,
+     "execution_count": 72,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2472,7 +2517,7 @@
   },
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    "cell_type": "code",
-   "execution_count": 93,
+   "execution_count": 73,
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    "outputs": [
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        "<Dot visualization: expr_as_graph [(\"K5\",(1..5)*(1..5))]>"
       ]
      },
-     "execution_count": 93,
+     "execution_count": 73,
      "metadata": {},
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@@ -2682,7 +2757,7 @@
   },
   {
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-   "execution_count": 94,
+   "execution_count": 74,
    "metadata": {},
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     {
@@ -2691,7 +2766,7 @@
        "Preference changed: DOT_ENGINE = circo\n"
       ]
      },
-     "execution_count": 94,
+     "execution_count": 74,
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@@ -2702,7 +2777,7 @@
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-   "execution_count": 95,
+   "execution_count": 75,
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+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M192.81,-409.16C202.59,-409.3 210.57,-407.06 210.57,-402.42 210.57,-399.59 207.6,-397.65 203.08,-396.6\"/>\n",
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+       "<title>3&#45;&gt;10</title>\n",
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+       "<g id=\"edge399\" class=\"edge\">\n",
+       "<title>1&#45;&gt;2</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M752.24,-201.41C756.87,-259.81 785.74,-443.67 801.09,-514.66\"/>\n",
+       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"797.73,-515.68 803.34,-524.67 804.56,-514.14 797.73,-515.68\"/>\n",
+       "<text text-anchor=\"middle\" x=\"762.16\" y=\"-346.83\" font-family=\"Times,serif\" font-size=\"14.00\">K20</text>\n",
        "</g>\n",
        "<!-- 1&#45;&gt;1 -->\n",
-       "<g id=\"edge800\" class=\"edge\"><title>1&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"firebrick\" d=\"M779.784,-190.071C789.567,-190.216 797.543,-187.968 797.543,-183.327 797.543,-180.499 794.581,-178.56 790.054,-177.509\"/>\n",
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-       "<text text-anchor=\"middle\" x=\"809.597\" y=\"-179.127\" font-family=\"Times,serif\" font-size=\"14.00\">K20</text>\n",
+       "<g id=\"edge400\" class=\"edge\">\n",
+       "<title>1&#45;&gt;1</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M779.78,-190.07C789.57,-190.22 797.54,-187.97 797.54,-183.33 797.54,-180.5 794.58,-178.56 790.05,-177.51\"/>\n",
+       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"790.06,-174 779.78,-176.58 789.43,-180.97 790.06,-174\"/>\n",
+       "<text text-anchor=\"middle\" x=\"812.04\" y=\"-179.63\" font-family=\"Times,serif\" font-size=\"14.00\">K20</text>\n",
        "</g>\n",
        "</g>\n",
        "</svg>"
@@ -5911,7 +6516,7 @@
        "<Dot visualization: expr_as_graph [(\"K20\",(1..20)*(1..20))]>"
       ]
      },
-     "execution_count": 96,
+     "execution_count": 76,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -5922,7 +6527,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 97,
+   "execution_count": 77,
    "metadata": {},
    "outputs": [
     {
@@ -5931,7 +6536,7 @@
        "Preference changed: DOT_ENGINE = dot\n"
       ]
      },
-     "execution_count": 97,
+     "execution_count": 77,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -5956,7 +6561,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 98,
+   "execution_count": 78,
    "metadata": {},
    "outputs": [
     {
@@ -5968,7 +6573,7 @@
        "{(2↦1),(4↦2),(6↦3),(8↦4),(10↦5)}"
       ]
      },
-     "execution_count": 98,
+     "execution_count": 78,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -5979,7 +6584,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 99,
+   "execution_count": 79,
    "metadata": {},
    "outputs": [
     {
@@ -5991,7 +6596,7 @@
        "{2,4,6,8,10}"
       ]
      },
-     "execution_count": 99,
+     "execution_count": 79,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -6002,7 +6607,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 100,
+   "execution_count": 80,
    "metadata": {},
    "outputs": [
     {
@@ -6014,7 +6619,7 @@
        "{1,2,3,4,5}"
       ]
      },
-     "execution_count": 100,
+     "execution_count": 80,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -6025,7 +6630,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 103,
+   "execution_count": 81,
    "metadata": {},
    "outputs": [
     {
@@ -6037,7 +6642,7 @@
        "{2,4,6,8,10}"
       ]
      },
-     "execution_count": 103,
+     "execution_count": 81,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -6048,16 +6653,30 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 82,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/markdown": [
+       "$\\{(2\\mapsto 1),(4\\mapsto 2),(6\\mapsto 3),(8\\mapsto 4),(10\\mapsto 5)\\}$"
+      ],
+      "text/plain": [
+       "{(2↦1),(4↦2),(6↦3),(8↦4),(10↦5)}"
+      ]
+     },
+     "execution_count": 82,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     ":let h {a,b| a∈1..10 ∧ b∈1..10 & b*2=a}"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 111,
+   "execution_count": 83,
    "metadata": {},
    "outputs": [
     {
@@ -6066,92 +6685,105 @@
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        "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
        " \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
-       "<!-- Generated by graphviz version 2.28.0 (20110509.1545)\n",
+       "<!-- Generated by graphviz version 2.44.1 (0)\n",
        " -->\n",
        "<!-- Title: state Pages: 1 -->\n",
-       "<svg width=\"206pt\" height=\"314pt\"\n",
-       " viewBox=\"0.00 0.00 206.00 314.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
-       "<g id=\"graph1\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 310)\">\n",
+       "<svg width=\"206pt\" height=\"305pt\"\n",
+       " viewBox=\"0.00 0.00 206.00 305.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 301)\">\n",
        "<title>state</title>\n",
-       "<polygon fill=\"white\" stroke=\"white\" points=\"-4,5 -4,-310 203,-310 203,5 -4,5\"/>\n",
+       "<polygon fill=\"white\" stroke=\"transparent\" points=\"-4,4 -4,-301 202,-301 202,4 -4,4\"/>\n",
        "<!-- 10 -->\n",
-       "<g id=\"node1\" class=\"node\"><title>10</title>\n",
-       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"54,-306 0,-306 0,-270 54,-270 54,-306\"/>\n",
-       "<text text-anchor=\"middle\" x=\"27\" y=\"-283.8\" font-family=\"Times,serif\" font-size=\"14.00\">10</text>\n",
+       "<g id=\"node1\" class=\"node\">\n",
+       "<title>10</title>\n",
+       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"54,-297 0,-297 0,-261 54,-261 54,-297\"/>\n",
+       "<text text-anchor=\"middle\" x=\"27\" y=\"-275.3\" font-family=\"Times,serif\" font-size=\"14.00\">10</text>\n",
        "</g>\n",
        "<!-- 5 -->\n",
-       "<g id=\"node3\" class=\"node\"><title>5</title>\n",
-       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"54,-216 0,-216 0,-180 54,-180 54,-216\"/>\n",
-       "<text text-anchor=\"middle\" x=\"27\" y=\"-193.8\" font-family=\"Times,serif\" font-size=\"14.00\">5</text>\n",
+       "<g id=\"node2\" class=\"node\">\n",
+       "<title>5</title>\n",
+       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"54,-210 0,-210 0,-174 54,-174 54,-210\"/>\n",
+       "<text text-anchor=\"middle\" x=\"27\" y=\"-188.3\" font-family=\"Times,serif\" font-size=\"14.00\">5</text>\n",
        "</g>\n",
        "<!-- 10&#45;&gt;5 -->\n",
-       "<g id=\"edge2\" class=\"edge\"><title>10&#45;&gt;5</title>\n",
-       "<path fill=\"none\" stroke=\"firebrick\" d=\"M27,-269.614C27,-257.24 27,-240.369 27,-226.22\"/>\n",
-       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"30.5001,-226.05 27,-216.05 23.5001,-226.05 30.5001,-226.05\"/>\n",
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+       "<g id=\"edge1\" class=\"edge\">\n",
+       "<title>10&#45;&gt;5</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M27,-260.8C27,-249.16 27,-233.55 27,-220.24\"/>\n",
+       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"30.5,-220.18 27,-210.18 23.5,-220.18 30.5,-220.18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"32\" y=\"-231.8\" font-family=\"Times,serif\" font-size=\"14.00\">h</text>\n",
        "</g>\n",
        "<!-- 8 -->\n",
-       "<g id=\"node4\" class=\"node\"><title>8</title>\n",
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-       "<text text-anchor=\"middle\" x=\"99\" y=\"-283.8\" font-family=\"Times,serif\" font-size=\"14.00\">8</text>\n",
+       "<g id=\"node3\" class=\"node\">\n",
+       "<title>8</title>\n",
+       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"126,-297 72,-297 72,-261 126,-261 126,-297\"/>\n",
+       "<text text-anchor=\"middle\" x=\"99\" y=\"-275.3\" font-family=\"Times,serif\" font-size=\"14.00\">8</text>\n",
        "</g>\n",
        "<!-- 4 -->\n",
-       "<g id=\"node6\" class=\"node\"><title>4</title>\n",
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-       "<text text-anchor=\"middle\" x=\"99\" y=\"-193.8\" font-family=\"Times,serif\" font-size=\"14.00\">4</text>\n",
+       "<g id=\"node4\" class=\"node\">\n",
+       "<title>4</title>\n",
+       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"126,-210 72,-210 72,-174 126,-174 126,-210\"/>\n",
+       "<text text-anchor=\"middle\" x=\"99\" y=\"-188.3\" font-family=\"Times,serif\" font-size=\"14.00\">4</text>\n",
        "</g>\n",
        "<!-- 8&#45;&gt;4 -->\n",
-       "<g id=\"edge4\" class=\"edge\"><title>8&#45;&gt;4</title>\n",
-       "<path fill=\"none\" stroke=\"firebrick\" d=\"M99,-269.614C99,-257.24 99,-240.369 99,-226.22\"/>\n",
-       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"102.5,-226.05 99,-216.05 95.5001,-226.05 102.5,-226.05\"/>\n",
-       "<text text-anchor=\"middle\" x=\"102.5\" y=\"-238.8\" font-family=\"Times,serif\" font-size=\"14.00\">h</text>\n",
+       "<g id=\"edge2\" class=\"edge\">\n",
+       "<title>8&#45;&gt;4</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M99,-260.8C99,-249.16 99,-233.55 99,-220.24\"/>\n",
+       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"102.5,-220.18 99,-210.18 95.5,-220.18 102.5,-220.18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"104\" y=\"-231.8\" font-family=\"Times,serif\" font-size=\"14.00\">h</text>\n",
        "</g>\n",
        "<!-- 2 -->\n",
-       "<g id=\"node11\" class=\"node\"><title>2</title>\n",
-       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"126,-126 72,-126 72,-90 126,-90 126,-126\"/>\n",
-       "<text text-anchor=\"middle\" x=\"99\" y=\"-103.8\" font-family=\"Times,serif\" font-size=\"14.00\">2</text>\n",
+       "<g id=\"node7\" class=\"node\">\n",
+       "<title>2</title>\n",
+       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"126,-123 72,-123 72,-87 126,-87 126,-123\"/>\n",
+       "<text text-anchor=\"middle\" x=\"99\" y=\"-101.3\" font-family=\"Times,serif\" font-size=\"14.00\">2</text>\n",
        "</g>\n",
        "<!-- 4&#45;&gt;2 -->\n",
-       "<g id=\"edge8\" class=\"edge\"><title>4&#45;&gt;2</title>\n",
-       "<path fill=\"none\" stroke=\"firebrick\" d=\"M99,-179.614C99,-167.24 99,-150.369 99,-136.22\"/>\n",
-       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"102.5,-136.05 99,-126.05 95.5001,-136.05 102.5,-136.05\"/>\n",
-       "<text text-anchor=\"middle\" x=\"102.5\" y=\"-148.8\" font-family=\"Times,serif\" font-size=\"14.00\">h</text>\n",
+       "<g id=\"edge4\" class=\"edge\">\n",
+       "<title>4&#45;&gt;2</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M99,-173.8C99,-162.16 99,-146.55 99,-133.24\"/>\n",
+       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"102.5,-133.18 99,-123.18 95.5,-133.18 102.5,-133.18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"104\" y=\"-144.8\" font-family=\"Times,serif\" font-size=\"14.00\">h</text>\n",
        "</g>\n",
        "<!-- 6 -->\n",
-       "<g id=\"node7\" class=\"node\"><title>6</title>\n",
-       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"198,-306 144,-306 144,-270 198,-270 198,-306\"/>\n",
-       "<text text-anchor=\"middle\" x=\"171\" y=\"-283.8\" font-family=\"Times,serif\" font-size=\"14.00\">6</text>\n",
+       "<g id=\"node5\" class=\"node\">\n",
+       "<title>6</title>\n",
+       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"198,-297 144,-297 144,-261 198,-261 198,-297\"/>\n",
+       "<text text-anchor=\"middle\" x=\"171\" y=\"-275.3\" font-family=\"Times,serif\" font-size=\"14.00\">6</text>\n",
        "</g>\n",
        "<!-- 3 -->\n",
-       "<g id=\"node9\" class=\"node\"><title>3</title>\n",
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+       "<g id=\"node6\" class=\"node\">\n",
+       "<title>3</title>\n",
+       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"198,-210 144,-210 144,-174 198,-174 198,-210\"/>\n",
+       "<text text-anchor=\"middle\" x=\"171\" y=\"-188.3\" font-family=\"Times,serif\" font-size=\"14.00\">3</text>\n",
        "</g>\n",
        "<!-- 6&#45;&gt;3 -->\n",
-       "<g id=\"edge6\" class=\"edge\"><title>6&#45;&gt;3</title>\n",
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-       "<text text-anchor=\"middle\" x=\"174.5\" y=\"-238.8\" font-family=\"Times,serif\" font-size=\"14.00\">h</text>\n",
+       "<g id=\"edge3\" class=\"edge\">\n",
+       "<title>6&#45;&gt;3</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M171,-260.8C171,-249.16 171,-233.55 171,-220.24\"/>\n",
+       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"174.5,-220.18 171,-210.18 167.5,-220.18 174.5,-220.18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"176\" y=\"-231.8\" font-family=\"Times,serif\" font-size=\"14.00\">h</text>\n",
        "</g>\n",
        "<!-- 1 -->\n",
-       "<g id=\"node13\" class=\"node\"><title>1</title>\n",
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+       "<g id=\"node8\" class=\"node\">\n",
+       "<title>1</title>\n",
+       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"126,-36 72,-36 72,0 126,0 126,-36\"/>\n",
+       "<text text-anchor=\"middle\" x=\"99\" y=\"-14.3\" font-family=\"Times,serif\" font-size=\"14.00\">1</text>\n",
        "</g>\n",
        "<!-- 2&#45;&gt;1 -->\n",
-       "<g id=\"edge10\" class=\"edge\"><title>2&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"firebrick\" d=\"M99,-89.614C99,-77.2403 99,-60.3686 99,-46.2198\"/>\n",
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-       "<text text-anchor=\"middle\" x=\"102.5\" y=\"-58.8\" font-family=\"Times,serif\" font-size=\"14.00\">h</text>\n",
+       "<g id=\"edge5\" class=\"edge\">\n",
+       "<title>2&#45;&gt;1</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M99,-86.8C99,-75.16 99,-59.55 99,-46.24\"/>\n",
+       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"102.5,-46.18 99,-36.18 95.5,-46.18 102.5,-46.18\"/>\n",
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        "</g>\n",
        "</g>\n",
        "</svg>"
       ],
       "text/plain": [
-       "<Dot visualization: expr_as_graph [dhd={(1,\"nein\"),(2,\"nein\"),(3,\"ja\"),(4,\"nein\"),(5,\"nein\"),(6,\"ja\"),(7,\"nein\")} & h={(2,1),(4,2),(6,3),(8,4),(10,5)}(\"h\",h)]>"
+       "<Dot visualization: expr_as_graph [hh={(2,1),(4,2),(6,3),(8,4),(10,5)}(\"h\",h)]>"
       ]
      },
-     "execution_count": 111,
+     "execution_count": 83,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -6162,7 +6794,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 104,
+   "execution_count": 84,
    "metadata": {},
    "outputs": [
     {
@@ -6174,7 +6806,7 @@
        "{(1↦\"nein\"),(2↦\"nein\"),(3↦\"ja\"),(4↦\"nein\"),(5↦\"nein\"),(6↦\"ja\"),(7↦\"nein\")}"
       ]
      },
-     "execution_count": 104,
+     "execution_count": 84,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -6185,7 +6817,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 105,
+   "execution_count": 85,
    "metadata": {},
    "outputs": [
     {
@@ -6197,7 +6829,7 @@
        "{1,2,3,4,5,6,7}"
       ]
      },
-     "execution_count": 105,
+     "execution_count": 85,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -6208,7 +6840,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 106,
+   "execution_count": 86,
    "metadata": {},
    "outputs": [
     {
@@ -6220,7 +6852,7 @@
        "{\"ja\",\"nein\"}"
       ]
      },
-     "execution_count": 106,
+     "execution_count": 86,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -6231,7 +6863,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 107,
+   "execution_count": 87,
    "metadata": {},
    "outputs": [
     {
@@ -6240,100 +6872,116 @@
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        " \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
-       "<!-- Generated by graphviz version 2.28.0 (20110509.1545)\n",
+       "<!-- Generated by graphviz version 2.44.1 (0)\n",
        " -->\n",
        "<!-- Title: state Pages: 1 -->\n",
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-       " viewBox=\"0.00 0.00 494.00 134.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
-       "<g id=\"graph1\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 130)\">\n",
+       "<svg width=\"494pt\" height=\"131pt\"\n",
+       " viewBox=\"0.00 0.00 494.00 131.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 127)\">\n",
        "<title>state</title>\n",
-       "<polygon fill=\"white\" stroke=\"white\" points=\"-4,5 -4,-130 491,-130 491,5 -4,5\"/>\n",
+       "<polygon fill=\"white\" stroke=\"transparent\" points=\"-4,4 -4,-127 490,-127 490,4 -4,4\"/>\n",
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-       "<g id=\"node1\" class=\"node\"><title>7</title>\n",
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+       "<g id=\"node1\" class=\"node\">\n",
+       "<title>7</title>\n",
+       "<polygon fill=\"#cdba96\" stroke=\"#cdba96\" points=\"54,-123 0,-123 0,-87 54,-87 54,-123\"/>\n",
+       "<text text-anchor=\"middle\" x=\"27\" y=\"-101.3\" font-family=\"Times,serif\" font-size=\"14.00\">7</text>\n",
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+       "<g id=\"edge7\" class=\"edge\">\n",
+       "<title>1&#45;&gt;&quot;nein&quot;</title>\n",
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        "</g>\n",
        "</g>\n",
        "</svg>"
@@ -6342,7 +6990,7 @@
        "<Dot visualization: expr_as_graph [dhd={(1,\"nein\"),(2,\"nein\"),(3,\"ja\"),(4,\"nein\"),(5,\"nein\"),(6,\"ja\"),(7,\"nein\")} & h={(2,1),(4,2),(6,3),(8,4),(10,5)}(\"d\",d)]>"
       ]
      },
-     "execution_count": 107,
+     "execution_count": 87,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -6368,7 +7016,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 112,
+   "execution_count": 88,
    "metadata": {},
    "outputs": [
     {
@@ -6380,7 +7028,7 @@
        "{4,5}"
       ]
      },
-     "execution_count": 112,
+     "execution_count": 88,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -6391,7 +7039,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 110,
+   "execution_count": 89,
    "metadata": {},
    "outputs": [
     {
@@ -6403,7 +7051,7 @@
        "{\"ja\"}"
       ]
      },
-     "execution_count": 110,
+     "execution_count": 89,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -6414,16 +7062,30 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 90,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/markdown": [
+       "$\\renewcommand{\\emptyset}{\\mathord\\varnothing}\\emptyset$"
+      ],
+      "text/plain": [
+       "∅"
+      ]
+     },
+     "execution_count": 90,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "d[{0}]"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 113,
+   "execution_count": 91,
    "metadata": {},
    "outputs": [
     {
@@ -6435,7 +7097,7 @@
        "{(\"ja\"↦3),(\"ja\"↦6),(\"nein\"↦1),(\"nein\"↦2),(\"nein\"↦4),(\"nein\"↦5),(\"nein\"↦7)}"
       ]
      },
-     "execution_count": 113,
+     "execution_count": 91,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -6446,7 +7108,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 114,
+   "execution_count": 92,
    "metadata": {},
    "outputs": [
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-       "<!-- Generated by graphviz version 2.28.0 (20110509.1545)\n",
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-       "<g id=\"graph1\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 130)\">\n",
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-     "execution_count": 114,
+     "execution_count": 92,
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-   "execution_count": 118,
+   "execution_count": 93,
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-     "execution_count": 118,
+     "execution_count": 93,
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+   "execution_count": 95,
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+     "execution_count": 95,
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@@ -6650,7 +7328,7 @@
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-   "execution_count": 123,
+   "execution_count": 96,
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-     "execution_count": 123,
+     "execution_count": 96,
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+   "execution_count": 97,
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        "<Dot visualization: expr_as_graph [hh={(2,1),(4,2),(6,3),(8,4),(10,5)}(\"h\",h)]>"
       ]
      },
-     "execution_count": 124,
+     "execution_count": 97,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -6790,18 +7483,191 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 98,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "image/svg+xml": [
+       "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n",
+       "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
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+       "<svg width=\"134pt\" height=\"131pt\"\n",
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+       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 127)\">\n",
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+       "<!-- 2 -->\n",
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+       "</g>\n",
+       "<!-- 8&#45;&gt;2 -->\n",
+       "<g id=\"edge1\" class=\"edge\">\n",
+       "<title>8&#45;&gt;2</title>\n",
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+       "<!-- 4&#45;&gt;1 -->\n",
+       "<g id=\"edge2\" class=\"edge\">\n",
+       "<title>4&#45;&gt;1</title>\n",
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+      ],
+      "text/plain": [
+       "<Dot visualization: expr_as_graph [hh={(2,1),(4,2),(6,3),(8,4),(10,5)}(\"hh\",(h;h))]>"
+      ]
+     },
+     "execution_count": 98,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     ":dot expr_as_graph (\"hh\",(h;h))"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 99,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "image/svg+xml": [
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+       "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
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+       "<!-- 10&#45;&gt;5 -->\n",
+       "<g id=\"edge1\" class=\"edge\">\n",
+       "<title>10&#45;&gt;5</title>\n",
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+       "<g id=\"edge2\" class=\"edge\">\n",
+       "<title>8&#45;&gt;4</title>\n",
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+       "<g id=\"edge4\" class=\"edge\">\n",
+       "<title>4&#45;&gt;2</title>\n",
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+       "<g id=\"edge5\" class=\"edge\">\n",
+       "<title>2&#45;&gt;1</title>\n",
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+       "</g>\n",
+       "</svg>"
+      ],
+      "text/plain": [
+       "<Dot visualization: expr_as_graph [hh={(2,1),(4,2),(6,3),(8,4),(10,5)}(\"h\",h)]>"
+      ]
+     },
+     "execution_count": 99,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     ":dot expr_as_graph (\"h\",(h))"
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@@ -6821,7 +7687,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 125,
+   "execution_count": 100,
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@@ -6833,7 +7699,7 @@
        "{(4↦1),(8↦2)}"
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      },
-     "execution_count": 125,
+     "execution_count": 100,
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      "output_type": "execute_result"
     }
@@ -6844,7 +7710,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 126,
+   "execution_count": 101,
    "metadata": {},
    "outputs": [
     {
@@ -6856,7 +7722,7 @@
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-     "execution_count": 126,
+     "execution_count": 101,
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@@ -6867,7 +7733,7 @@
   },
   {
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-   "execution_count": 127,
+   "execution_count": 102,
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    "outputs": [
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@@ -6879,7 +7745,7 @@
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-     "execution_count": 127,
+     "execution_count": 102,
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@@ -6897,7 +7763,7 @@
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-   "execution_count": 128,
+   "execution_count": 103,
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@@ -6909,7 +7775,7 @@
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-     "execution_count": 128,
+     "execution_count": 103,
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@@ -6920,7 +7786,7 @@
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-   "execution_count": 129,
+   "execution_count": 104,
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+       "<g id=\"edge5\" class=\"edge\">\n",
+       "<title>6&#45;&gt;3</title>\n",
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@@ -7032,7 +7914,7 @@
        "<Dot visualization: expr_as_graph [hh={(2,1),(4,2),(6,3),(8,4),(10,5)}(\"h+\",closure1(h))]>"
       ]
      },
-     "execution_count": 129,
+     "execution_count": 104,
      "metadata": {},
      "output_type": "execute_result"
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@@ -7043,7 +7925,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 130,
+   "execution_count": 105,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -7059,7 +7941,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 131,
+   "execution_count": 106,
    "metadata": {},
    "outputs": [
     {
@@ -7071,7 +7953,7 @@
        "{(∅↦{1}),(∅↦{2}),(∅↦{3}),({1}↦{1,2}),({1}↦{1,3}),({1,2}↦{1,2,3}),({1,3}↦{1,2,3}),({2}↦{1,2}),({2}↦{2,3}),({2,3}↦{1,2,3}),({3}↦{1,3}),({3}↦{2,3})}"
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-     "execution_count": 131,
+     "execution_count": 106,
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@@ -7082,7 +7964,7 @@
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   {
    "cell_type": "code",
-   "execution_count": 132,
+   "execution_count": 107,
    "metadata": {},
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@@ -7091,7 +7973,7 @@
        "Preference changed: DOT_DECOMPOSE_NODES = false\n"
       ]
      },
-     "execution_count": 132,
+     "execution_count": 107,
      "metadata": {},
      "output_type": "execute_result"
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@@ -7102,7 +7984,7 @@
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-   "execution_count": 133,
+   "execution_count": 108,
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      },
-     "execution_count": 133,
+     "execution_count": 108,
      "metadata": {},
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+   "execution_count": 109,
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+       "<title>1&#45;&gt;1</title>\n",
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@@ -7717,7 +8660,7 @@
        "<Dot visualization: expr_as_graph [Arsub1A={1,2,3} & r={(1,2),(2,3)} & sub1={({},{1}),({},{2}),({},{3}),({1},{1,2}),({1},{1,3}),({1,2},{1,2,3}),({1,3},{1,2,3}),({2},{1,2}),({2},{2,3}),({2,3},{1,2,3}),({3},{1,3}),({3},{2,3})}(\"r*\",id(A)\\/r\\/(r;r)\\/((r;r);r)\\/(((r;r);r);r))]>"
       ]
      },
-     "execution_count": 141,
+     "execution_count": 116,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -7735,18 +8678,97 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 117,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/markdown": [
+       "$\\{(1\\mapsto 2),(1\\mapsto 3),(2\\mapsto 3)\\}$"
+      ],
+      "text/plain": [
+       "{(1↦2),(1↦3),(2↦3)}"
+      ]
+     },
+     "execution_count": 117,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "closure1(r)"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 118,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "image/svg+xml": [
+       "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n",
+       "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
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+       "<!-- 2&#45;&gt;3 -->\n",
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+       "<!-- 1&#45;&gt;2 -->\n",
+       "<g id=\"edge3\" class=\"edge\">\n",
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+       "<!-- 1&#45;&gt;3 -->\n",
+       "<g id=\"edge2\" class=\"edge\">\n",
+       "<title>1&#45;&gt;3</title>\n",
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+       "</g>\n",
+       "</svg>"
+      ],
+      "text/plain": [
+       "<Dot visualization: expr_as_graph [Arsub1A={1,2,3} & r={(1,2),(2,3)} & sub1={({},{1}),({},{2}),({},{3}),({1},{1,2}),({1},{1,3}),({1,2},{1,2,3}),({1,3},{1,2,3}),({2},{1,2}),({2},{2,3}),({2,3},{1,2,3}),({3},{1,3}),({3},{2,3})}(\"r+\",closure1(r))]>"
+      ]
+     },
+     "execution_count": 118,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     ":dot expr_as_graph (\"r+\",closure1(r))"
    ]
@@ -7760,7 +8782,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 142,
+   "execution_count": 119,
    "metadata": {},
    "outputs": [
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@@ -7772,7 +8794,7 @@
        "{1,2}"
       ]
      },
-     "execution_count": 142,
+     "execution_count": 119,
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   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 120,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/markdown": [
+       "$/*@symbolic*/ \\{\\mathit{z\\_},\\mathit{z\\_\\_}\\mid \\mathit{z\\_} \\mapsto \\mathit{z\\_\\_} \\in \\{(1\\mapsto 2),(1\\mapsto 3),(2\\mapsto 3)\\} \\lor \\mathit{z\\_} = \\mathit{z\\_\\_}\\}$"
+      ],
+      "text/plain": [
+       "/*@symbolic*/ {z_,z__∣z_ ↦ z__ ∈ {(1↦2),(1↦3),(2↦3)} ∨ z_ = z__}"
+      ]
+     },
+     "execution_count": 120,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "closure(r)"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 143,
+   "execution_count": 121,
    "metadata": {},
    "outputs": [
     {
@@ -7811,7 +8847,7 @@
        "{1,2,3}"
       ]
      },
-     "execution_count": 143,
+     "execution_count": 121,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -7822,7 +8858,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 144,
+   "execution_count": 122,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -7846,7 +8882,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 145,
+   "execution_count": 123,
    "metadata": {},
    "outputs": [
     {
@@ -7858,7 +8894,7 @@
        "{(1↦2),(2↦3),(3↦4),(4↦5),(5↦6),(6↦7),(7↦8),(8↦9),(9↦10),(10↦11)}"
       ]
      },
-     "execution_count": 145,
+     "execution_count": 123,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -7871,12 +8907,12 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Eine Funktion kann also als Mengen von Paaren dargestellt werden. Es sind aber nicht alle Mengen an Paaren auch Funktionen. Zum Beispiel, unsere Relation sub1 von oben ist keine Funktion:"
+    "Eine Funktion kann also als Menge von Paaren dargestellt werden. Es sind aber nicht alle Mengen an Paaren auch Funktionen. Zum Beispiel, unsere Relation sub1 von oben ist keine Funktion:"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 146,
+   "execution_count": 124,
    "metadata": {},
    "outputs": [
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-       "<!-- Generated by graphviz version 2.28.0 (20110509.1545)\n",
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+       "<g id=\"node1\" class=\"node\">\n",
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+       "<g id=\"edge1\" class=\"edge\">\n",
+       "<title>\\{3\\}&#45;&gt;\\{2,3\\}</title>\n",
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+       "<g id=\"edge2\" class=\"edge\">\n",
+       "<title>\\{3\\}&#45;&gt;\\{1,3\\}</title>\n",
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+       "<title>\\{2\\}&#45;&gt;\\{1,2\\}</title>\n",
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+       "<g id=\"edge12\" class=\"edge\">\n",
+       "<title>\\{\\}&#45;&gt;\\{1\\}</title>\n",
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        "</svg>"
@@ -8012,7 +9068,7 @@
        "<Dot visualization: expr_as_graph [Asub1A={1,2,3} & sub1={({},{1}),({},{2}),({},{3}),({1},{1,2}),({1},{1,3}),({1,2},{1,2,3}),({1,3},{1,2,3}),({2},{1,2}),({2},{2,3}),({2,3},{1,2,3}),({3},{1,3}),({3},{2,3})}(\"sub1\",sub1)]>"
       ]
      },
-     "execution_count": 146,
+     "execution_count": 124,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8030,9 +9086,23 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 125,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/markdown": [
+       "$\\renewcommand{\\emptyset}{\\mathord\\varnothing}\\renewcommand{\\emptyset}{\\mathord\\varnothing}\\renewcommand{\\emptyset}{\\mathord\\varnothing}\\{(\\emptyset\\mapsto\\{1\\}),(\\emptyset\\mapsto\\{2\\}),(\\emptyset\\mapsto\\{3\\}),(\\{1\\}\\mapsto\\{1,2\\}),(\\{1\\}\\mapsto\\{1,3\\}),(\\{1,2\\}\\mapsto\\{1,2,3\\}),(\\{1,3\\}\\mapsto\\{1,2,3\\}),(\\{2\\}\\mapsto\\{1,2\\}),(\\{2\\}\\mapsto\\{2,3\\}),(\\{2,3\\}\\mapsto\\{1,2,3\\}),(\\{3\\}\\mapsto\\{1,3\\}),(\\{3\\}\\mapsto\\{2,3\\})\\}$"
+      ],
+      "text/plain": [
+       "{(∅↦{1}),(∅↦{2}),(∅↦{3}),({1}↦{1,2}),({1}↦{1,3}),({1,2}↦{1,2,3}),({1,3}↦{1,2,3}),({2}↦{1,2}),({2}↦{2,3}),({2,3}↦{1,2,3}),({3}↦{1,3}),({3}↦{2,3})}"
+      ]
+     },
+     "execution_count": 125,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "sub1"
    ]
@@ -8051,7 +9121,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 147,
+   "execution_count": 126,
    "metadata": {},
    "outputs": [
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@@ -8063,7 +9133,7 @@
        "FALSE"
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      },
-     "execution_count": 147,
+     "execution_count": 126,
      "metadata": {},
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@@ -8074,7 +9144,7 @@
   },
   {
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-   "execution_count": 148,
+   "execution_count": 127,
    "metadata": {},
    "outputs": [
     {
@@ -8086,7 +9156,7 @@
        "FALSE"
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      },
-     "execution_count": 148,
+     "execution_count": 127,
      "metadata": {},
      "output_type": "execute_result"
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@@ -8097,7 +9167,7 @@
   },
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-   "execution_count": 149,
+   "execution_count": 128,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -8106,7 +9176,7 @@
   },
   {
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-   "execution_count": 150,
+   "execution_count": 129,
    "metadata": {},
    "outputs": [
     {
@@ -8118,7 +9188,7 @@
        "{(1↦2),(2↦3),(3↦4),(4↦5),(5↦6),(6↦7),(7↦8),(8↦9),(9↦10),(10↦11)}"
       ]
      },
-     "execution_count": 150,
+     "execution_count": 129,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8129,7 +9199,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 151,
+   "execution_count": 130,
    "metadata": {},
    "outputs": [
     {
@@ -8149,7 +9219,7 @@
        "\ti10 = {(1↦2),(2↦3),(3↦4),(4↦5),(5↦6),(6↦7),(7↦8),(8↦9),(9↦10),(10↦11)}"
       ]
      },
-     "execution_count": 151,
+     "execution_count": 130,
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@@ -8160,7 +9230,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 152,
+   "execution_count": 131,
    "metadata": {},
    "outputs": [
     {
@@ -8180,7 +9250,7 @@
        "\ti10 = {(1↦2),(2↦3),(3↦4),(4↦5),(5↦6),(6↦7),(7↦8),(8↦9),(9↦10),(10↦11)}"
       ]
      },
-     "execution_count": 152,
+     "execution_count": 131,
      "metadata": {},
      "output_type": "execute_result"
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@@ -8198,7 +9268,7 @@
   },
   {
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-   "execution_count": 153,
+   "execution_count": 132,
    "metadata": {},
    "outputs": [
     {
@@ -8218,7 +9288,7 @@
        "\ti10 = {(1↦2),(2↦3),(3↦4),(4↦5),(5↦6),(6↦7),(7↦8),(8↦9),(9↦10),(10↦11)}"
       ]
      },
-     "execution_count": 153,
+     "execution_count": 132,
      "metadata": {},
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@@ -8236,7 +9306,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 154,
+   "execution_count": 133,
    "metadata": {},
    "outputs": [
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@@ -8248,7 +9318,7 @@
        "FALSE"
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      },
-     "execution_count": 154,
+     "execution_count": 133,
      "metadata": {},
      "output_type": "execute_result"
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@@ -8259,7 +9329,7 @@
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    "cell_type": "code",
-   "execution_count": 155,
+   "execution_count": 134,
    "metadata": {},
    "outputs": [
     {
@@ -8271,7 +9341,7 @@
        "FALSE"
       ]
      },
-     "execution_count": 155,
+     "execution_count": 134,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8282,7 +9352,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 156,
+   "execution_count": 135,
    "metadata": {},
    "outputs": [
     {
@@ -8294,7 +9364,7 @@
        "{1,2,3,4,5,6,7,8,9,10}"
       ]
      },
-     "execution_count": 156,
+     "execution_count": 135,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8312,7 +9382,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 157,
+   "execution_count": 136,
    "metadata": {},
    "outputs": [
     {
@@ -8334,7 +9404,7 @@
        "\tz = 5"
       ]
      },
-     "execution_count": 157,
+     "execution_count": 136,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8345,7 +9415,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 158,
+   "execution_count": 137,
    "metadata": {},
    "outputs": [
     {
@@ -8357,7 +9427,7 @@
        "{1,2,3,4,5,6,7,8,9,10}"
       ]
      },
-     "execution_count": 158,
+     "execution_count": 137,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8368,7 +9438,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 159,
+   "execution_count": 138,
    "metadata": {},
    "outputs": [
     {
@@ -8380,7 +9450,7 @@
        "{2,3,4,5,6,7,8,9,10,11}"
       ]
      },
-     "execution_count": 159,
+     "execution_count": 138,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8391,7 +9461,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 160,
+   "execution_count": 139,
    "metadata": {},
    "outputs": [
     {
@@ -8403,7 +9473,7 @@
        "{5,6}"
       ]
      },
-     "execution_count": 160,
+     "execution_count": 139,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8414,7 +9484,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 167,
+   "execution_count": 140,
    "metadata": {},
    "outputs": [
     {
@@ -8426,7 +9496,7 @@
        "{5}"
       ]
      },
-     "execution_count": 167,
+     "execution_count": 140,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8437,7 +9507,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 162,
+   "execution_count": 141,
    "metadata": {},
    "outputs": [
     {
@@ -8449,7 +9519,7 @@
        "{3}"
       ]
      },
-     "execution_count": 162,
+     "execution_count": 141,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8460,7 +9530,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 163,
+   "execution_count": 142,
    "metadata": {},
    "outputs": [
     {
@@ -8472,7 +9542,7 @@
        "{6}"
       ]
      },
-     "execution_count": 163,
+     "execution_count": 142,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8483,7 +9553,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 164,
+   "execution_count": 143,
    "metadata": {},
    "outputs": [
     {
@@ -8495,7 +9565,7 @@
        "{5,6,7,8,9,10,11}"
       ]
      },
-     "execution_count": 164,
+     "execution_count": 143,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8506,7 +9576,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 165,
+   "execution_count": 144,
    "metadata": {},
    "outputs": [
     {
@@ -8518,7 +9588,7 @@
        "{1,2,3}"
       ]
      },
-     "execution_count": 165,
+     "execution_count": 144,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8536,7 +9606,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 170,
+   "execution_count": 145,
    "metadata": {},
    "outputs": [
     {
@@ -8548,7 +9618,7 @@
        "5"
       ]
      },
-     "execution_count": 170,
+     "execution_count": 145,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8559,7 +9629,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 171,
+   "execution_count": 146,
    "metadata": {},
    "outputs": [
     {
@@ -8571,7 +9641,7 @@
        "10"
       ]
      },
-     "execution_count": 171,
+     "execution_count": 146,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8589,7 +9659,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 172,
+   "execution_count": 147,
    "metadata": {},
    "outputs": [
     {
@@ -8601,7 +9671,7 @@
        "∅"
       ]
      },
-     "execution_count": 172,
+     "execution_count": 147,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8612,7 +9682,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 173,
+   "execution_count": 148,
    "metadata": {},
    "outputs": [
     {
@@ -8624,7 +9694,7 @@
        "{(1↦2),(2↦3),(3↦4),(4↦5),(5↦6),(6↦7),(7↦8),(8↦9),(9↦10),(10↦11)}"
       ]
      },
-     "execution_count": 173,
+     "execution_count": 148,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8635,17 +9705,17 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 174,
+   "execution_count": 149,
    "metadata": {},
    "outputs": [
     {
      "ename": "CommandExecutionException",
-     "evalue": ":eval: NOT-WELL-DEFINED: \nfunction applied outside of domain (#7):  Function argument: 100, function value: {}\n ### Line: 1, Column: 99 until 107\n\n",
+     "evalue": ":eval: NOT-WELL-DEFINED: \nfunction applied outside of domain (#7):  Function argument: 100, function value: {}\n ### Line: 2, Column: 0 until 8\n\n",
      "output_type": "error",
      "traceback": [
       "\u001b[1m\u001b[31m:eval: NOT-WELL-DEFINED: \u001b[0m",
       "\u001b[1m\u001b[31mfunction applied outside of domain (#7):  Function argument: 100, function value: {}\u001b[0m",
-      "\u001b[1m\u001b[31m ### Line: 1, Column: 99 until 107\u001b[0m"
+      "\u001b[1m\u001b[31m ### Line: 2, Column: 0 until 8\u001b[0m"
      ]
     }
    ],
@@ -8662,7 +9732,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 175,
+   "execution_count": 150,
    "metadata": {},
    "outputs": [
     {
@@ -8674,7 +9744,7 @@
        "{{(1↦1),(2↦1)},{(1↦1),(2↦2)},{(1↦2),(2↦1)},{(1↦2),(2↦2)}}"
       ]
      },
-     "execution_count": 175,
+     "execution_count": 150,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8698,7 +9768,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 176,
+   "execution_count": 151,
    "metadata": {},
    "outputs": [
     {
@@ -8710,7 +9780,7 @@
        "{∅,{(1↦1)},{(1↦1),(2↦1)},{(1↦1),(2↦2)},{(1↦2)},{(1↦2),(2↦1)},{(1↦2),(2↦2)},{(2↦1)},{(2↦2)}}"
       ]
      },
-     "execution_count": 176,
+     "execution_count": 151,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8721,7 +9791,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 177,
+   "execution_count": 152,
    "metadata": {},
    "outputs": [
     {
@@ -8741,7 +9811,7 @@
        "\ti10 = {(1↦2),(2↦3),(3↦4),(4↦5),(5↦6),(6↦7),(7↦8),(8↦9),(9↦10),(10↦11)}"
       ]
      },
-     "execution_count": 177,
+     "execution_count": 152,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8759,7 +9829,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 178,
+   "execution_count": 153,
    "metadata": {},
    "outputs": [
     {
@@ -8771,7 +9841,7 @@
        "{∅,{(1↦1)},{(1↦2)},{(2↦1)},{(2↦2)}}"
       ]
      },
-     "execution_count": 178,
+     "execution_count": 153,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8789,7 +9859,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 179,
+   "execution_count": 154,
    "metadata": {},
    "outputs": [
     {
@@ -8801,7 +9871,7 @@
        "{{(1↦1),(2↦2)},{(1↦2),(2↦1)}}"
       ]
      },
-     "execution_count": 179,
+     "execution_count": 154,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8819,7 +9889,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 180,
+   "execution_count": 155,
    "metadata": {},
    "outputs": [
     {
@@ -8831,7 +9901,7 @@
        "{{(1↦1),(2↦2)},{(1↦2),(2↦1)}}"
       ]
      },
-     "execution_count": 180,
+     "execution_count": 155,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8842,7 +9912,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 181,
+   "execution_count": 156,
    "metadata": {},
    "outputs": [
     {
@@ -8854,7 +9924,7 @@
        "{{(1↦1),(2↦2)},{(1↦2),(2↦1)}}"
       ]
      },
-     "execution_count": 181,
+     "execution_count": 156,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8865,7 +9935,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 182,
+   "execution_count": 157,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -8916,7 +9986,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 199,
+   "execution_count": 158,
    "metadata": {},
    "outputs": [
     {
@@ -8928,7 +9998,7 @@
        "{(1↦22),(2↦22),(3↦33)}"
       ]
      },
-     "execution_count": 199,
+     "execution_count": 158,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8939,7 +10009,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 200,
+   "execution_count": 159,
    "metadata": {},
    "outputs": [
     {
@@ -8951,7 +10021,7 @@
        "{(1↦22),(2↦22),(3↦33)}"
       ]
      },
-     "execution_count": 200,
+     "execution_count": 159,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -8962,7 +10032,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 190,
+   "execution_count": 160,
    "metadata": {},
    "outputs": [
     {
@@ -8971,56 +10041,64 @@
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        "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
        " \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
-       "<!-- Generated by graphviz version 2.28.0 (20110509.1545)\n",
+       "<!-- Generated by graphviz version 2.44.1 (0)\n",
        " -->\n",
        "<!-- Title: state Pages: 1 -->\n",
-       "<svg width=\"206pt\" height=\"134pt\"\n",
-       " viewBox=\"0.00 0.00 206.00 134.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
-       "<g id=\"graph1\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 130)\">\n",
+       "<svg width=\"206pt\" height=\"131pt\"\n",
+       " viewBox=\"0.00 0.00 206.00 131.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 127)\">\n",
        "<title>state</title>\n",
-       "<polygon fill=\"white\" stroke=\"white\" points=\"-4,5 -4,-130 203,-130 203,5 -4,5\"/>\n",
+       "<polygon fill=\"white\" stroke=\"transparent\" points=\"-4,4 -4,-127 202,-127 202,4 -4,4\"/>\n",
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        "</g>\n",
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+       "<g id=\"edge1\" class=\"edge\">\n",
+       "<title>3&#45;&gt;33</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M27,-86.8C27,-75.16 27,-59.55 27,-46.24\"/>\n",
+       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"30.5,-46.18 27,-36.18 23.5,-46.18 30.5,-46.18\"/>\n",
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+       "<g id=\"edge2\" class=\"edge\">\n",
+       "<title>2&#45;&gt;22</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M106.29,-86.8C111.31,-74.93 118.09,-58.93 123.8,-45.45\"/>\n",
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        "</g>\n",
        "<!-- 1&#45;&gt;22 -->\n",
-       "<g id=\"edge6\" class=\"edge\"><title>1&#45;&gt;22</title>\n",
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+       "<g id=\"edge3\" class=\"edge\">\n",
+       "<title>1&#45;&gt;22</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M163.71,-86.8C158.69,-74.93 151.91,-58.93 146.2,-45.45\"/>\n",
+       "<polygon fill=\"firebrick\" stroke=\"firebrick\" points=\"149.4,-44.02 142.27,-36.18 142.95,-46.75 149.4,-44.02\"/>\n",
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        "</g>\n",
        "</g>\n",
        "</svg>"
@@ -9029,7 +10107,7 @@
        "<Dot visualization: expr_as_graph [AGA={1,2,3} & G={(1,22),(2,22),(3,33)}(\"G\",G)]>"
       ]
      },
-     "execution_count": 190,
+     "execution_count": 160,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -9053,7 +10131,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 191,
+   "execution_count": 161,
    "metadata": {},
    "outputs": [
     {
@@ -9065,7 +10143,7 @@
        "22"
       ]
      },
-     "execution_count": 191,
+     "execution_count": 161,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -9083,7 +10161,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 192,
+   "execution_count": 162,
    "metadata": {},
    "outputs": [
     {
@@ -9095,7 +10173,7 @@
        "3"
       ]
      },
-     "execution_count": 192,
+     "execution_count": 162,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -9106,7 +10184,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 193,
+   "execution_count": 163,
    "metadata": {},
    "outputs": [
     {
@@ -9118,7 +10196,7 @@
        "3"
       ]
      },
-     "execution_count": 193,
+     "execution_count": 163,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -9136,7 +10214,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 194,
+   "execution_count": 164,
    "metadata": {},
    "outputs": [
     {
@@ -9148,7 +10226,7 @@
        "{1,2,3}"
       ]
      },
-     "execution_count": 194,
+     "execution_count": 164,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -9159,7 +10237,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 195,
+   "execution_count": 165,
    "metadata": {},
    "outputs": [
     {
@@ -9171,7 +10249,7 @@
        "{22,33}"
       ]
      },
-     "execution_count": 195,
+     "execution_count": 165,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -9182,7 +10260,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 196,
+   "execution_count": 166,
    "metadata": {},
    "outputs": [
     {
@@ -9194,7 +10272,7 @@
        "{1,2}"
       ]
      },
-     "execution_count": 196,
+     "execution_count": 166,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -9205,7 +10283,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 197,
+   "execution_count": 167,
    "metadata": {},
    "outputs": [],
    "source": [
diff --git a/info4/kapitel-1/Grammatiken.ipynb b/info4/kapitel-1/Grammatiken.ipynb
index be926db3ae5ee0fbaa407572335c0b884a098387..b7f35c32954122df213dfe0f30879693743d4be0 100644
--- a/info4/kapitel-1/Grammatiken.ipynb
+++ b/info4/kapitel-1/Grammatiken.ipynb
@@ -6,7 +6,7 @@
    "source": [
     "## Grammatiken und Chomsky-Hierarchie\n",
     "\n",
-    "Dieses Notebook begleitet Teil 2 der Vorlesung 3 und führt am Ende die Chomsky-Hierarchie ein"
+    "Dieses Notebook begleitet Teil 2 der Vorlesung 3 und führt am Ende die Chomsky-Hierarchie ein."
    ]
   },
   {
@@ -625,7 +625,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Wenn wir mit $\\Sigma^*$ schneiden bekommen wir Wörter der von der Grammatik generierten Sprache:"
+    "Wenn wir mit $\\Sigma^*$ schneiden, bekommen wir Wörter der von der Grammatik generierten Sprache:"
    ]
   },
   {
@@ -1804,7 +1804,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Die obige Tabelle zeigt, in welche Sprachklasse die entsprechenden Grammatiken fallen. Dabei ist zu beachten, dass L3 = L4 ist, aber P3 und P4 unterschiedliche Typen haben. Die Sprache fällt allerdings immer in die größte Spracheklasse zu der es eine Grammatik gibt, die diese Sprache erzeugt. Also gilt $L4 ∈ \\mathfrak{L}_3 = REG$. Daher reicht die Angabe einer Grammatik nicht aus, um zu zeigen dass eine Sprache höchstens in einer der Klassen liegt. Um dies zu zeigen gibt es verschiedene Methoden, wie z.B. das Pumping-Lemma oder die Myhill-Nerode Relation."
+    "Die obige Tabelle zeigt, in welche Sprachklasse die entsprechenden Grammatiken fallen. Dabei ist zu beachten, dass L3 = L4 ist, aber P3 und P4 unterschiedliche Typen haben. Die Sprache fällt allerdings immer in die größte Spracheklasse zu der es eine Grammatik gibt, die diese Sprache erzeugt. Also gilt $L4 ∈ \\mathfrak{L}_3 = REG$. Daher reicht die Angabe einer Grammatik nicht aus, um zu zeigen, dass eine Sprache höchstens in einer der Klassen liegt. Um dies zu zeigen, gibt es verschiedene Methoden, wie z.B. das Pumping-Lemma oder die Myhill-Nerode Relation."
    ]
   },
   {
diff --git a/info4/kapitel-11/PCP.ipynb b/info4/kapitel-11/PCP.ipynb
index 848d689913ad559f027581b011ece86eab95d4dd..35951dcc3b2658fa60fac8511a76d56dc30b9a58 100644
--- a/info4/kapitel-11/PCP.ipynb
+++ b/info4/kapitel-11/PCP.ipynb
@@ -33,7 +33,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 190,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [
     {
@@ -42,7 +42,7 @@
        "Loaded machine: PostCorrespondence_MC"
       ]
      },
-     "execution_count": 190,
+     "execution_count": 1,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -85,7 +85,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 191,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [
     {
@@ -94,7 +94,7 @@
        "Machine constants set up using operation 0: $setup_constants()"
       ]
      },
-     "execution_count": 191,
+     "execution_count": 2,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -105,7 +105,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 192,
+   "execution_count": 3,
    "metadata": {},
    "outputs": [
     {
@@ -114,7 +114,7 @@
        "Machine initialised using operation 1: $initialise_machine()"
       ]
      },
-     "execution_count": 192,
+     "execution_count": 3,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -125,7 +125,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 193,
+   "execution_count": 4,
    "metadata": {},
    "outputs": [
     {
@@ -137,7 +137,7 @@
        "[([1]↦[1,0]),([0,1]↦[1]),([0,1,0]↦[1,0,0])]"
       ]
      },
-     "execution_count": 193,
+     "execution_count": 4,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -148,7 +148,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 194,
+   "execution_count": 5,
    "metadata": {},
    "outputs": [
     {
@@ -167,7 +167,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 194,
+     "execution_count": 5,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -178,7 +178,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 195,
+   "execution_count": 6,
    "metadata": {},
    "outputs": [
     {
@@ -192,7 +192,7 @@
        "Schritt(1,[1],[1,0])"
       ]
      },
-     "execution_count": 195,
+     "execution_count": 6,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -210,7 +210,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 196,
+   "execution_count": 7,
    "metadata": {},
    "outputs": [
     {
@@ -219,7 +219,7 @@
        "Executed operation: Schritt(1,[1],[1,0])"
       ]
      },
-     "execution_count": 196,
+     "execution_count": 7,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -230,7 +230,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 197,
+   "execution_count": 8,
    "metadata": {},
    "outputs": [
     {
@@ -253,7 +253,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 197,
+     "execution_count": 8,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -264,7 +264,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 198,
+   "execution_count": 9,
    "metadata": {},
    "outputs": [
     {
@@ -276,7 +276,7 @@
        "[1]"
       ]
      },
-     "execution_count": 198,
+     "execution_count": 9,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -287,7 +287,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 199,
+   "execution_count": 10,
    "metadata": {},
    "outputs": [
     {
@@ -299,7 +299,7 @@
        "[1,0]"
       ]
      },
-     "execution_count": 199,
+     "execution_count": 10,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -310,7 +310,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 200,
+   "execution_count": 11,
    "metadata": {},
    "outputs": [
     {
@@ -325,7 +325,7 @@
        "Schritt(3,[0,1,0],[1,0,0])"
       ]
      },
-     "execution_count": 200,
+     "execution_count": 11,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -343,7 +343,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 201,
+   "execution_count": 12,
    "metadata": {},
    "outputs": [
     {
@@ -352,7 +352,7 @@
        "Executed operation: Schritt(2,[0,1],[1])"
       ]
      },
-     "execution_count": 201,
+     "execution_count": 12,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -363,7 +363,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 202,
+   "execution_count": 13,
    "metadata": {},
    "outputs": [
     {
@@ -388,7 +388,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 202,
+     "execution_count": 13,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -399,7 +399,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 203,
+   "execution_count": 14,
    "metadata": {},
    "outputs": [
     {
@@ -408,7 +408,7 @@
        "Executed operation: Lösung()"
       ]
      },
-     "execution_count": 203,
+     "execution_count": 14,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -427,7 +427,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 204,
+   "execution_count": 15,
    "metadata": {},
    "outputs": [
     {
@@ -449,7 +449,7 @@
        "4: Lösung() (current)"
       ]
      },
-     "execution_count": 204,
+     "execution_count": 15,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -460,7 +460,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 205,
+   "execution_count": 16,
    "metadata": {},
    "outputs": [
     {
@@ -469,7 +469,7 @@
        "Changed to state with index 2"
       ]
      },
-     "execution_count": 205,
+     "execution_count": 16,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -480,7 +480,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 206,
+   "execution_count": 17,
    "metadata": {},
    "outputs": [
     {
@@ -503,7 +503,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 206,
+     "execution_count": 17,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -514,7 +514,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 207,
+   "execution_count": 18,
    "metadata": {},
    "outputs": [
     {
@@ -523,7 +523,7 @@
        "Executed operation: Schritt(3,[0,1,0],[1,0,0])"
       ]
      },
-     "execution_count": 207,
+     "execution_count": 18,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -534,7 +534,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 208,
+   "execution_count": 19,
    "metadata": {},
    "outputs": [
     {
@@ -563,7 +563,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 208,
+     "execution_count": 19,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -574,7 +574,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 209,
+   "execution_count": 20,
    "metadata": {},
    "outputs": [
     {
@@ -583,7 +583,7 @@
        "Executed operation: Schritt(3,[0,1,0],[1,0,0])"
       ]
      },
-     "execution_count": 209,
+     "execution_count": 20,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -594,7 +594,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 210,
+   "execution_count": 21,
    "metadata": {},
    "outputs": [
     {
@@ -629,7 +629,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 210,
+     "execution_count": 21,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -640,7 +640,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 211,
+   "execution_count": 22,
    "metadata": {},
    "outputs": [
     {
@@ -649,7 +649,7 @@
        "Executed operation: Schritt(2,[0,1],[1])"
       ]
      },
-     "execution_count": 211,
+     "execution_count": 22,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -660,7 +660,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 212,
+   "execution_count": 23,
    "metadata": {},
    "outputs": [
     {
@@ -697,7 +697,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 212,
+     "execution_count": 23,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -708,7 +708,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 213,
+   "execution_count": 24,
    "metadata": {},
    "outputs": [
     {
@@ -717,7 +717,7 @@
        "Executed operation: Lösung()"
       ]
      },
-     "execution_count": 213,
+     "execution_count": 24,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -728,7 +728,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 214,
+   "execution_count": 25,
    "metadata": {},
    "outputs": [
     {
@@ -754,7 +754,7 @@
        "6: Lösung() (current)"
       ]
      },
-     "execution_count": 214,
+     "execution_count": 25,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -770,7 +770,7 @@
     "Sie können das B Modell oben mit anderen Werten für K ausprobieren:\n",
     "- K = [ [0,1]↦[1], [0,1,0]↦[1,0,0], [1]↦[1,0] ]  Problem von Folie 36 */\n",
     "- K = [ [1]↦[1,0,1], [1,0]↦[0,0], [0,1,1]↦[1,1] ] \n",
-    "- K = [ [0,0,1]↦[0], [0,1]↦[0,1,1], [0,1]↦[1,0,1], [1,0] ↦ [0,0,1] ], Problem von Folie 32; kleinse Lösung hat 66 Elemente\n",
+    "- K = [ [0,0,1]↦[0], [0,1]↦[0,1,1], [0,1]↦[1,0,1], [1,0] ↦ [0,0,1] ], Problem von Folie 32; kleinste Lösung hat 66 Elemente\n",
     "\n",
     "Hier erst einmal Illustration der Lösung von Folie 36.\n",
     "Folgende Maschine hat keinen vordefinierten Wert von K; man muss diesen der :constants Anweisung übergeben."
@@ -778,7 +778,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 215,
+   "execution_count": 26,
    "metadata": {},
    "outputs": [
     {
@@ -787,7 +787,7 @@
        "Loaded machine: PostCorrespondence_MC"
       ]
      },
-     "execution_count": 215,
+     "execution_count": 26,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -830,7 +830,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 216,
+   "execution_count": 27,
    "metadata": {},
    "outputs": [
     {
@@ -839,7 +839,7 @@
        "Machine constants set up using operation 0: $setup_constants()"
       ]
      },
-     "execution_count": 216,
+     "execution_count": 27,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -850,7 +850,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 217,
+   "execution_count": 28,
    "metadata": {},
    "outputs": [
     {
@@ -859,7 +859,7 @@
        "Machine initialised using operation 1: $initialise_machine()"
       ]
      },
-     "execution_count": 217,
+     "execution_count": 28,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -870,7 +870,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 218,
+   "execution_count": 29,
    "metadata": {},
    "outputs": [
     {
@@ -879,7 +879,7 @@
        "Executed operation: Schritt(3,[1],[1,0])"
       ]
      },
-     "execution_count": 218,
+     "execution_count": 29,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -890,7 +890,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 219,
+   "execution_count": 30,
    "metadata": {},
    "outputs": [
     {
@@ -913,7 +913,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 219,
+     "execution_count": 30,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -924,7 +924,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 220,
+   "execution_count": 31,
    "metadata": {},
    "outputs": [
     {
@@ -933,7 +933,7 @@
        "Executed operation: Schritt(2,[0,1,0],[1,0,0])"
       ]
      },
-     "execution_count": 220,
+     "execution_count": 31,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -944,7 +944,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 221,
+   "execution_count": 32,
    "metadata": {},
    "outputs": [
     {
@@ -973,7 +973,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 221,
+     "execution_count": 32,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -984,7 +984,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 222,
+   "execution_count": 33,
    "metadata": {},
    "outputs": [
     {
@@ -993,7 +993,7 @@
        "Executed operation: Schritt(2,[0,1,0],[1,0,0])"
       ]
      },
-     "execution_count": 222,
+     "execution_count": 33,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1004,7 +1004,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 223,
+   "execution_count": 34,
    "metadata": {},
    "outputs": [
     {
@@ -1039,7 +1039,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 223,
+     "execution_count": 34,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1050,7 +1050,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 224,
+   "execution_count": 35,
    "metadata": {},
    "outputs": [
     {
@@ -1059,7 +1059,7 @@
        "Executed operation: Schritt(1,[0,1],[1])"
       ]
      },
-     "execution_count": 224,
+     "execution_count": 35,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1070,7 +1070,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 225,
+   "execution_count": 36,
    "metadata": {},
    "outputs": [
     {
@@ -1107,7 +1107,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 225,
+     "execution_count": 36,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1125,7 +1125,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 226,
+   "execution_count": 37,
    "metadata": {},
    "outputs": [
     {
@@ -1134,7 +1134,7 @@
        "Changed to state with index -1"
       ]
      },
-     "execution_count": 226,
+     "execution_count": 37,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1145,7 +1145,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 227,
+   "execution_count": 38,
    "metadata": {},
    "outputs": [
     {
@@ -1154,7 +1154,7 @@
        "Machine constants set up using operation 11: $setup_constants()"
       ]
      },
-     "execution_count": 227,
+     "execution_count": 38,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1165,7 +1165,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 228,
+   "execution_count": 39,
    "metadata": {},
    "outputs": [
     {
@@ -1174,7 +1174,7 @@
        "Machine initialised using operation 12: $initialise_machine()"
       ]
      },
-     "execution_count": 228,
+     "execution_count": 39,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1185,7 +1185,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 229,
+   "execution_count": 40,
    "metadata": {},
    "outputs": [
     {
@@ -1200,7 +1200,7 @@
        "Schritt(2,[0,1],[0,1,1])"
       ]
      },
-     "execution_count": 229,
+     "execution_count": 40,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1211,7 +1211,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 230,
+   "execution_count": 41,
    "metadata": {},
    "outputs": [
     {
@@ -1220,7 +1220,7 @@
        "Executed operation: Schritt(2,[0,1],[0,1,1])"
       ]
      },
-     "execution_count": 230,
+     "execution_count": 41,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1231,7 +1231,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 231,
+   "execution_count": 42,
    "metadata": {},
    "outputs": [
     {
@@ -1240,7 +1240,7 @@
        "Executed operation: Schritt(4,[1,0],[0,0,1])"
       ]
      },
-     "execution_count": 231,
+     "execution_count": 42,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1251,7 +1251,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 232,
+   "execution_count": 43,
    "metadata": {},
    "outputs": [
     {
@@ -1282,7 +1282,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 232,
+     "execution_count": 43,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1300,7 +1300,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 233,
+   "execution_count": 44,
    "metadata": {},
    "outputs": [
     {
@@ -1309,7 +1309,7 @@
        "Executed operation: Schritt(3,[0,1],[1,0,1])"
       ]
      },
-     "execution_count": 233,
+     "execution_count": 44,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1320,7 +1320,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 234,
+   "execution_count": 45,
    "metadata": {},
    "outputs": [
     {
@@ -1329,7 +1329,7 @@
        "Executed operation: Schritt(4,[1,0],[0,0,1])"
       ]
      },
-     "execution_count": 234,
+     "execution_count": 45,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1340,7 +1340,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 235,
+   "execution_count": 46,
    "metadata": {},
    "outputs": [
     {
@@ -1349,7 +1349,7 @@
        "Executed operation: Schritt(4,[1,0],[0,0,1])"
       ]
      },
-     "execution_count": 235,
+     "execution_count": 46,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1360,7 +1360,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 236,
+   "execution_count": 47,
    "metadata": {},
    "outputs": [
     {
@@ -1369,7 +1369,7 @@
        "Executed operation: Schritt(2,[0,1],[0,1,1])"
       ]
      },
-     "execution_count": 236,
+     "execution_count": 47,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1380,7 +1380,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 237,
+   "execution_count": 48,
    "metadata": {},
    "outputs": [
     {
@@ -1435,7 +1435,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 237,
+     "execution_count": 48,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1526,15 +1526,15 @@
     "## Kodierung des Halteproblems als MPCP Problem\n",
     "\n",
     "Folgende B Maschine kodiert das Halteproblem einer Turingmaschine als MPCP Problem.\n",
-    "Der erste Schritt zu einer Lösung wird in der Initialisierung kodiert; dort wir erzwungen, dass wir das erste Paar aus dem Skript $(\\#,\\# z_0 w)$ benutzen.\n",
+    "Der erste Schritt zu einer Lösung wird in der Initialisierung kodiert; dort wird erzwungen, dass wir das erste Paar aus dem Skript $(\\#,\\# z_0 w \\#)$ benutzen.\n",
     "Die Turing Maschine hat 3 Zustände: z0,z1,z2.\n",
     "z2 ist der Endzustand.\n",
-    "z0 akzeptiert a and wechselt bei einem b zu z1, z1 akzeptiert b's und geht zu z2 bei einem Blank. \n"
+    "z0 akzeptiert a and wechselt bei einem b zu z1, z1 akzeptiert b's und geht zu z2 bei einem Blank. "
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 238,
+   "execution_count": 49,
    "metadata": {},
    "outputs": [
     {
@@ -1543,7 +1543,7 @@
        "Loaded machine: PostCorrespondence_Turing_MC"
       ]
      },
-     "execution_count": 238,
+     "execution_count": 49,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1593,7 +1593,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 239,
+   "execution_count": 50,
    "metadata": {},
    "outputs": [
     {
@@ -1602,7 +1602,7 @@
        "Machine constants set up using operation 0: $setup_constants()"
       ]
      },
-     "execution_count": 239,
+     "execution_count": 50,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1613,7 +1613,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 240,
+   "execution_count": 51,
    "metadata": {},
    "outputs": [
     {
@@ -1622,7 +1622,7 @@
        "Machine initialised using operation 1: $initialise_machine()"
       ]
      },
-     "execution_count": 240,
+     "execution_count": 51,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1633,7 +1633,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 241,
+   "execution_count": 52,
    "metadata": {},
    "outputs": [
     {
@@ -1662,7 +1662,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 241,
+     "execution_count": 52,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1673,7 +1673,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 242,
+   "execution_count": 53,
    "metadata": {},
    "outputs": [
     {
@@ -1687,7 +1687,7 @@
        "Schritt(4,[z0,a],[a,z0])"
       ]
      },
-     "execution_count": 242,
+     "execution_count": 53,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1698,7 +1698,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 243,
+   "execution_count": 54,
    "metadata": {},
    "outputs": [
     {
@@ -1707,7 +1707,7 @@
        "Executed operation: Schritt(4,[z0,a],[a,z0])"
       ]
      },
-     "execution_count": 243,
+     "execution_count": 54,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1718,7 +1718,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 244,
+   "execution_count": 55,
    "metadata": {},
    "outputs": [
     {
@@ -1751,7 +1751,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 244,
+     "execution_count": 55,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1770,7 +1770,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 245,
+   "execution_count": 56,
    "metadata": {},
    "outputs": [
     {
@@ -1784,7 +1784,7 @@
        "Schritt(2,[b],[b])"
       ]
      },
-     "execution_count": 245,
+     "execution_count": 56,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1795,7 +1795,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 246,
+   "execution_count": 57,
    "metadata": {},
    "outputs": [
     {
@@ -1804,7 +1804,7 @@
        "Executed operation: Schritt(2,[b],[b])"
       ]
      },
-     "execution_count": 246,
+     "execution_count": 57,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1815,7 +1815,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 247,
+   "execution_count": 58,
    "metadata": {},
    "outputs": [
     {
@@ -1829,7 +1829,7 @@
        "Schritt(3,[Hash],[Hash])"
       ]
      },
-     "execution_count": 247,
+     "execution_count": 58,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1840,7 +1840,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 248,
+   "execution_count": 59,
    "metadata": {},
    "outputs": [
     {
@@ -1849,7 +1849,7 @@
        "Executed operation: Schritt(3,[Hash],[Hash])"
       ]
      },
-     "execution_count": 248,
+     "execution_count": 59,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1860,7 +1860,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 249,
+   "execution_count": 60,
    "metadata": {},
    "outputs": [
     {
@@ -1897,7 +1897,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 249,
+     "execution_count": 60,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1908,7 +1908,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 250,
+   "execution_count": 61,
    "metadata": {},
    "outputs": [
     {
@@ -1922,7 +1922,7 @@
        "Schritt(1,[a],[a])"
       ]
      },
-     "execution_count": 250,
+     "execution_count": 61,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1940,7 +1940,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 251,
+   "execution_count": 62,
    "metadata": {},
    "outputs": [
     {
@@ -1949,7 +1949,7 @@
        "Executed operation: Schritt(1,[a],[a])"
       ]
      },
-     "execution_count": 251,
+     "execution_count": 62,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1960,7 +1960,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 252,
+   "execution_count": 63,
    "metadata": {},
    "outputs": [
     {
@@ -1999,7 +1999,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 252,
+     "execution_count": 63,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2010,7 +2010,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 253,
+   "execution_count": 64,
    "metadata": {},
    "outputs": [
     {
@@ -2024,7 +2024,7 @@
        "Schritt(5,[z0,b],[b,z1])"
       ]
      },
-     "execution_count": 253,
+     "execution_count": 64,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2035,7 +2035,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 254,
+   "execution_count": 65,
    "metadata": {},
    "outputs": [
     {
@@ -2044,7 +2044,7 @@
        "Executed operation: Schritt(5,[z0,b],[b,z1])"
       ]
      },
-     "execution_count": 254,
+     "execution_count": 65,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2055,7 +2055,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 255,
+   "execution_count": 66,
    "metadata": {},
    "outputs": [
     {
@@ -2098,7 +2098,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 255,
+     "execution_count": 66,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2116,7 +2116,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 256,
+   "execution_count": 67,
    "metadata": {},
    "outputs": [
     {
@@ -2125,7 +2125,7 @@
        "Executed operation: Schritt(3,[Hash],[Hash])"
       ]
      },
-     "execution_count": 256,
+     "execution_count": 67,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2136,7 +2136,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 257,
+   "execution_count": 68,
    "metadata": {},
    "outputs": [
     {
@@ -2145,7 +2145,7 @@
        "Executed operation: Schritt(1,[a],[a])"
       ]
      },
-     "execution_count": 257,
+     "execution_count": 68,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2156,7 +2156,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 258,
+   "execution_count": 69,
    "metadata": {},
    "outputs": [
     {
@@ -2203,7 +2203,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 258,
+     "execution_count": 69,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2214,7 +2214,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 259,
+   "execution_count": 70,
    "metadata": {},
    "outputs": [
     {
@@ -2223,7 +2223,7 @@
        "Executed operation: Schritt(2,[b],[b])"
       ]
      },
-     "execution_count": 259,
+     "execution_count": 70,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2234,7 +2234,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 260,
+   "execution_count": 71,
    "metadata": {},
    "outputs": [
     {
@@ -2283,7 +2283,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 260,
+     "execution_count": 71,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2294,7 +2294,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 261,
+   "execution_count": 72,
    "metadata": {},
    "outputs": [
     {
@@ -2308,7 +2308,7 @@
        "Schritt(7,[z1,Hash],[z2,Hash])"
       ]
      },
-     "execution_count": 261,
+     "execution_count": 72,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2319,7 +2319,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 262,
+   "execution_count": 73,
    "metadata": {},
    "outputs": [
     {
@@ -2328,7 +2328,7 @@
        "Executed operation: Schritt(7,[z1,Hash],[z2,Hash])"
       ]
      },
-     "execution_count": 262,
+     "execution_count": 73,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2339,7 +2339,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 263,
+   "execution_count": 74,
    "metadata": {},
    "outputs": [
     {
@@ -2392,7 +2392,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 263,
+     "execution_count": 74,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2410,7 +2410,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 264,
+   "execution_count": 75,
    "metadata": {},
    "outputs": [
     {
@@ -2424,7 +2424,7 @@
        "Schritt(1,[a],[a])"
       ]
      },
-     "execution_count": 264,
+     "execution_count": 75,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2435,7 +2435,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 265,
+   "execution_count": 76,
    "metadata": {},
    "outputs": [
     {
@@ -2444,7 +2444,7 @@
        "Executed operation: Schritt(1,[a],[a])"
       ]
      },
-     "execution_count": 265,
+     "execution_count": 76,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2455,7 +2455,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 266,
+   "execution_count": 77,
    "metadata": {},
    "outputs": [
     {
@@ -2510,7 +2510,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 266,
+     "execution_count": 77,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2521,7 +2521,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 267,
+   "execution_count": 78,
    "metadata": {},
    "outputs": [
     {
@@ -2536,7 +2536,7 @@
        "Schritt(9,[b,z2],[z2])"
       ]
      },
-     "execution_count": 267,
+     "execution_count": 78,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2554,7 +2554,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 268,
+   "execution_count": 79,
    "metadata": {},
    "outputs": [
     {
@@ -2563,7 +2563,7 @@
        "Executed operation: Schritt(9,[b,z2],[z2])"
       ]
      },
-     "execution_count": 268,
+     "execution_count": 79,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2574,7 +2574,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 269,
+   "execution_count": 80,
    "metadata": {},
    "outputs": [
     {
@@ -2631,7 +2631,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 269,
+     "execution_count": 80,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2642,7 +2642,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 270,
+   "execution_count": 81,
    "metadata": {},
    "outputs": [
     {
@@ -2656,7 +2656,7 @@
        "Schritt(3,[Hash],[Hash])"
       ]
      },
-     "execution_count": 270,
+     "execution_count": 81,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2667,7 +2667,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 271,
+   "execution_count": 82,
    "metadata": {},
    "outputs": [
     {
@@ -2676,7 +2676,7 @@
        "Executed operation: Schritt(3,[Hash],[Hash])"
       ]
      },
-     "execution_count": 271,
+     "execution_count": 82,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2687,7 +2687,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 272,
+   "execution_count": 83,
    "metadata": {},
    "outputs": [
     {
@@ -2746,7 +2746,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 272,
+     "execution_count": 83,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2757,7 +2757,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 273,
+   "execution_count": 84,
    "metadata": {},
    "outputs": [
     {
@@ -2772,7 +2772,7 @@
        "Schritt(8,[a,z2],[z2])"
       ]
      },
-     "execution_count": 273,
+     "execution_count": 84,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2790,7 +2790,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 274,
+   "execution_count": 85,
    "metadata": {},
    "outputs": [
     {
@@ -2799,7 +2799,7 @@
        "Executed operation: Schritt(8,[a,z2],[z2])"
       ]
      },
-     "execution_count": 274,
+     "execution_count": 85,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2810,7 +2810,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 275,
+   "execution_count": 86,
    "metadata": {},
    "outputs": [
     {
@@ -2871,7 +2871,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 275,
+     "execution_count": 86,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2882,7 +2882,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 276,
+   "execution_count": 87,
    "metadata": {},
    "outputs": [
     {
@@ -2891,7 +2891,7 @@
        "Executed operation: Schritt(3,[Hash],[Hash])"
       ]
      },
-     "execution_count": 276,
+     "execution_count": 87,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2902,7 +2902,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 277,
+   "execution_count": 88,
    "metadata": {},
    "outputs": [
     {
@@ -2965,7 +2965,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 277,
+     "execution_count": 88,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2976,7 +2976,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 278,
+   "execution_count": 89,
    "metadata": {},
    "outputs": [
     {
@@ -2990,7 +2990,7 @@
        "Schritt(10,[z2,Hash,Hash],[Hash])"
       ]
      },
-     "execution_count": 278,
+     "execution_count": 89,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -3008,7 +3008,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 279,
+   "execution_count": 90,
    "metadata": {},
    "outputs": [
     {
@@ -3017,7 +3017,7 @@
        "Executed operation: Schritt(10,[z2,Hash,Hash],[Hash])"
       ]
      },
-     "execution_count": 279,
+     "execution_count": 90,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -3028,7 +3028,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 280,
+   "execution_count": 91,
    "metadata": {},
    "outputs": [
     {
@@ -3093,7 +3093,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 280,
+     "execution_count": 91,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -3104,7 +3104,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 281,
+   "execution_count": 92,
    "metadata": {},
    "outputs": [
     {
@@ -3113,7 +3113,7 @@
        "Executed operation: Lösung()"
       ]
      },
-     "execution_count": 281,
+     "execution_count": 92,
      "metadata": {},
      "output_type": "execute_result"
     }
diff --git a/info4/kapitel-2/DFA.ipynb b/info4/kapitel-2/DFA.ipynb
index dc0fca0ed30292f548b7644c6c939b34ce199ce5..1182c2660b38bacda49b1cae10aa21f42526a555 100644
--- a/info4/kapitel-2/DFA.ipynb
+++ b/info4/kapitel-2/DFA.ipynb
@@ -37,7 +37,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [
     {
@@ -46,7 +46,7 @@
        "Loaded machine: DFA"
       ]
      },
-     "execution_count": 2,
+     "execution_count": 1,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -80,7 +80,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [
     {
@@ -89,7 +89,7 @@
        "Machine constants set up using operation 0: $setup_constants()"
       ]
      },
-     "execution_count": 3,
+     "execution_count": 2,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -109,7 +109,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 3,
    "metadata": {},
    "outputs": [
     {
@@ -121,7 +121,7 @@
        "z1"
       ]
      },
-     "execution_count": 4,
+     "execution_count": 3,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -139,7 +139,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 4,
    "metadata": {},
    "outputs": [
     {
@@ -151,7 +151,7 @@
        "z2"
       ]
      },
-     "execution_count": 5,
+     "execution_count": 4,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -194,7 +194,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 5,
    "metadata": {},
    "outputs": [
     {
@@ -206,7 +206,7 @@
        "FALSE"
       ]
      },
-     "execution_count": 6,
+     "execution_count": 5,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -242,7 +242,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 6,
    "metadata": {},
    "outputs": [
     {
@@ -251,90 +251,104 @@
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-       "<g id=\"node5\" class=\"node\"><title>4</title>\n",
+       "<g id=\"node5\" class=\"node\">\n",
+       "<title>4</title>\n",
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        "<!-- 4&#45;&gt;1 -->\n",
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@@ -343,7 +357,7 @@
        "<Dot visualization: custom_graph []>"
       ]
      },
-     "execution_count": 7,
+     "execution_count": 6,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -365,7 +379,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 8,
+   "execution_count": 7,
    "metadata": {},
    "outputs": [
     {
@@ -377,7 +391,7 @@
        "z2"
       ]
      },
-     "execution_count": 8,
+     "execution_count": 7,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -408,7 +422,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": 8,
    "metadata": {},
    "outputs": [
     {
@@ -417,7 +431,7 @@
        "Loaded machine: DFA"
       ]
      },
-     "execution_count": 9,
+     "execution_count": 8,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -460,7 +474,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 10,
+   "execution_count": 9,
    "metadata": {},
    "outputs": [
     {
@@ -469,7 +483,7 @@
        "Machine constants set up using operation 0: $setup_constants()"
       ]
      },
-     "execution_count": 10,
+     "execution_count": 9,
      "metadata": {},
      "output_type": "execute_result"
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@@ -487,7 +501,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 17,
+   "execution_count": 10,
    "metadata": {},
    "outputs": [
     {
@@ -499,7 +513,7 @@
        "z2"
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      },
-     "execution_count": 17,
+     "execution_count": 10,
      "metadata": {},
      "output_type": "execute_result"
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@@ -517,7 +531,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 19,
+   "execution_count": 11,
    "metadata": {},
    "outputs": [
     {
@@ -529,7 +543,7 @@
        "TRUE"
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      },
-     "execution_count": 19,
+     "execution_count": 11,
      "metadata": {},
      "output_type": "execute_result"
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@@ -540,7 +554,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 20,
+   "execution_count": 12,
    "metadata": {},
    "outputs": [
     {
@@ -552,7 +566,7 @@
        "z3"
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      },
-     "execution_count": 20,
+     "execution_count": 12,
      "metadata": {},
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@@ -570,7 +584,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 21,
+   "execution_count": 13,
    "metadata": {},
    "outputs": [
     {
@@ -582,7 +596,7 @@
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      },
-     "execution_count": 21,
+     "execution_count": 13,
      "metadata": {},
      "output_type": "execute_result"
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@@ -600,7 +614,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 22,
+   "execution_count": 14,
    "metadata": {},
    "outputs": [
     {
@@ -617,7 +631,7 @@
        "0\t1\t1\n"
       ]
      },
-     "execution_count": 22,
+     "execution_count": 14,
      "metadata": {},
      "output_type": "execute_result"
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@@ -628,7 +642,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 23,
+   "execution_count": 15,
    "metadata": {},
    "outputs": [
     {
@@ -649,7 +663,7 @@
        "0\t1\t1\t1\n"
       ]
      },
-     "execution_count": 23,
+     "execution_count": 15,
      "metadata": {},
      "output_type": "execute_result"
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@@ -663,8 +677,8 @@
    "metadata": {},
    "source": [
     "Anmerkung:\n",
-    "Für $a \\in \\Sigma$ gilt $\\widehat{\\delta}(z, a) = \\delta(z, a)$, und\n",
-    "\\item für $x = a_1 a_2 \\cdots a_n$ in $\\Sigma^*$ gilt:\n",
+    "\n",
+    "Für $a \\in \\Sigma$ gilt $\\widehat{\\delta}(z, a) = \\delta(z, a)$, und für $x = a_1 a_2 \\cdots a_n$ in $\\Sigma^*$ gilt:\n",
     "* $\\widehat{\\delta}(z, x) = \\delta( \\cdots \\delta(\\delta(z, a_1), a_2)\\cdots , a_n).$\n",
     "\n",
     "Zum Beispiel:"
@@ -672,7 +686,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 24,
+   "execution_count": 16,
    "metadata": {},
    "outputs": [
     {
@@ -684,7 +698,7 @@
        "z2"
       ]
      },
-     "execution_count": 24,
+     "execution_count": 16,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -702,7 +716,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 25,
+   "execution_count": 17,
    "metadata": {},
    "outputs": [
     {
@@ -714,7 +728,7 @@
        "z2"
       ]
      },
-     "execution_count": 25,
+     "execution_count": 17,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -732,7 +746,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 26,
+   "execution_count": 18,
    "metadata": {},
    "outputs": [
     {
@@ -744,7 +758,7 @@
        "z2"
       ]
      },
-     "execution_count": 26,
+     "execution_count": 18,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -755,7 +769,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 27,
+   "execution_count": 19,
    "metadata": {},
    "outputs": [
     {
@@ -767,7 +781,7 @@
        "z2"
       ]
      },
-     "execution_count": 27,
+     "execution_count": 19,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -778,7 +792,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 28,
+   "execution_count": 20,
    "metadata": {},
    "outputs": [
     {
@@ -790,7 +804,7 @@
        "z2"
       ]
      },
-     "execution_count": 28,
+     "execution_count": 20,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -810,7 +824,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": 21,
    "metadata": {},
    "outputs": [
     {
@@ -819,7 +833,7 @@
        "Loaded machine: DFA"
       ]
      },
-     "execution_count": 1,
+     "execution_count": 21,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -860,7 +874,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 22,
    "metadata": {},
    "outputs": [
     {
@@ -869,7 +883,7 @@
        "Machine constants set up using operation 0: $setup_constants()"
       ]
      },
-     "execution_count": 2,
+     "execution_count": 22,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -888,7 +902,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 31,
+   "execution_count": 23,
    "metadata": {},
    "outputs": [
     {
@@ -900,7 +914,7 @@
        "z0"
       ]
      },
-     "execution_count": 31,
+     "execution_count": 23,
      "metadata": {},
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@@ -918,7 +932,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 32,
+   "execution_count": 24,
    "metadata": {},
    "outputs": [
     {
@@ -930,7 +944,7 @@
        "z1"
       ]
      },
-     "execution_count": 32,
+     "execution_count": 24,
      "metadata": {},
      "output_type": "execute_result"
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@@ -941,7 +955,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 33,
+   "execution_count": 25,
    "metadata": {},
    "outputs": [
     {
@@ -953,7 +967,7 @@
        "TRUE"
       ]
      },
-     "execution_count": 33,
+     "execution_count": 25,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -964,7 +978,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 34,
+   "execution_count": 26,
    "metadata": {},
    "outputs": [
     {
@@ -976,7 +990,7 @@
        "FALSE"
       ]
      },
-     "execution_count": 34,
+     "execution_count": 26,
      "metadata": {},
      "output_type": "execute_result"
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@@ -994,7 +1008,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 27,
    "metadata": {},
    "outputs": [
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      },
-     "execution_count": 7,
+     "execution_count": 27,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1087,46 +1112,6 @@
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-  {
-   "cell_type": "code",
-   "execution_count": 4,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "Preference changed: DOT_HORIZONTAL_LAYOUT = TRUE\n"
-      ]
-     },
-     "execution_count": 4,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
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-  {
-   "cell_type": "code",
-   "execution_count": 6,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "Preference changed: DOT_LIMIT_PAGE_SIZE = FALSE\n"
-      ]
-     },
-     "execution_count": 6,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    ":pref DOT_LIMIT_PAGE_SIZE=FALSE"
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-  },
   {
    "cell_type": "code",
    "execution_count": null,
diff --git a/info4/kapitel-2/Minimalautomat.ipynb b/info4/kapitel-2/Minimalautomat.ipynb
index f776b2a719edf1ebe59cf03a114be7a1b50b97f4..4aead4447164a16bb91022cd13e21e7c4185795a 100644
--- a/info4/kapitel-2/Minimalautomat.ipynb
+++ b/info4/kapitel-2/Minimalautomat.ipynb
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-       "<g id=\"node6\" class=\"node\"><title>5</title>\n",
+       "<g id=\"node6\" class=\"node\">\n",
+       "<title>5</title>\n",
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@@ -581,7 +627,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": 10,
    "metadata": {},
    "outputs": [
     {
@@ -590,7 +636,7 @@
        "Executed operation: Markiere(z1,z0,0)"
       ]
      },
-     "execution_count": 9,
+     "execution_count": 10,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -601,7 +647,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 10,
+   "execution_count": 11,
    "metadata": {},
    "outputs": [
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        "<!-- 5 -->\n",
-       "<g id=\"node6\" class=\"node\"><title>5</title>\n",
+       "<g id=\"node6\" class=\"node\">\n",
+       "<title>5</title>\n",
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        "<!-- 5&#45;&gt;2 -->\n",
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+       "<title>5&#45;&gt;2</title>\n",
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@@ -804,7 +881,7 @@
        "<Dot visualization: custom_graph []>"
       ]
      },
-     "execution_count": 10,
+     "execution_count": 11,
      "metadata": {},
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     }
@@ -815,7 +892,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 11,
+   "execution_count": 12,
    "metadata": {},
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     {
@@ -824,7 +901,7 @@
        "Executed operation: Markiere(z2,z0,0)"
       ]
      },
-     "execution_count": 11,
+     "execution_count": 12,
      "metadata": {},
      "output_type": "execute_result"
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@@ -835,7 +912,7 @@
   },
   {
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-   "execution_count": 12,
+   "execution_count": 13,
    "metadata": {},
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        "<Dot visualization: custom_graph []>"
       ]
      },
-     "execution_count": 12,
+     "execution_count": 13,
      "metadata": {},
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   },
   {
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-   "execution_count": 13,
+   "execution_count": 14,
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      },
-     "execution_count": 13,
+     "execution_count": 14,
      "metadata": {},
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@@ -1088,7 +1198,7 @@
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-   "execution_count": 14,
+   "execution_count": 15,
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+       "<ellipse fill=\"lightgrey\" stroke=\"black\" cx=\"215.63\" cy=\"-657.85\" rx=\"18.44\" ry=\"18.44\"/>\n",
+       "<text text-anchor=\"middle\" x=\"215.63\" y=\"-654.75\" font-family=\"Times,serif\" font-size=\"12.00\">z2</text>\n",
        "</g>\n",
        "<!-- 2&#45;&gt;4 -->\n",
-       "<g id=\"edge2\" class=\"edge\"><title>2&#45;&gt;4</title>\n",
-       "<path fill=\"none\" stroke=\"green\" d=\"M178.17,-120.685C168.213,-134.389 153.297,-154.919 141.829,-170.703\"/>\n",
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+       "<g id=\"edge1\" class=\"edge\">\n",
+       "<title>2&#45;&gt;4</title>\n",
+       "<path fill=\"none\" stroke=\"green\" d=\"M318.7,-377.74C300.28,-427.82 247.76,-570.53 225.65,-630.63\"/>\n",
+       "<polygon fill=\"green\" stroke=\"green\" points=\"222.29,-629.61 222.12,-640.2 228.86,-632.02 222.29,-629.61\"/>\n",
+       "<text text-anchor=\"middle\" x=\"268.17\" y=\"-507.59\" font-family=\"Times,serif\" font-size=\"12.00\">1</text>\n",
        "</g>\n",
        "<!-- 3&#45;&gt;0 -->\n",
-       "<g id=\"edge4\" class=\"edge\"><title>3&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"green\" d=\"M107.043,-18.5233C91.3191,-21.8227 68.3467,-28.9058 50.2324,-35.8389\"/>\n",
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+       "<g id=\"edge2\" class=\"edge\">\n",
+       "<title>3&#45;&gt;0</title>\n",
+       "<path fill=\"none\" stroke=\"green\" d=\"M198.04,-68.67C166.16,-85.24 99.03,-127.9 62.73,-154.27\"/>\n",
+       "<polygon fill=\"green\" stroke=\"green\" points=\"60.58,-151.51 54.63,-160.28 64.75,-157.14 60.58,-151.51\"/>\n",
+       "<text text-anchor=\"middle\" x=\"126.38\" y=\"-114.87\" font-family=\"Times,serif\" font-size=\"12.00\">1</text>\n",
        "</g>\n",
        "<!-- 3&#45;&gt;0 -->\n",
-       "<g id=\"edge14\" class=\"edge\"><title>3&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"red\" d=\"M110.204,-28.2522C95.5439,-34.8253 72.7956,-42.5978 54.0656,-47.6362\"/>\n",
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+       "<g id=\"edge7\" class=\"edge\">\n",
+       "<title>3&#45;&gt;0</title>\n",
+       "<path fill=\"none\" stroke=\"red\" d=\"M202.37,-75.43C174.03,-97.5 107.26,-140.74 68.16,-162.73\"/>\n",
+       "<polygon fill=\"red\" stroke=\"red\" points=\"66.4,-159.71 59.32,-167.59 69.77,-165.84 66.4,-159.71\"/>\n",
+       "<text text-anchor=\"middle\" x=\"139.26\" y=\"-122.48\" font-family=\"Times,serif\" font-size=\"12.00\">0</text>\n",
        "</g>\n",
        "<!-- 3&#45;&gt;4 -->\n",
-       "<g id=\"edge22\" class=\"edge\"><title>3&#45;&gt;4</title>\n",
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-       "<text text-anchor=\"middle\" x=\"125.517\" y=\"-97.0916\" font-family=\"Times,serif\" font-size=\"12.00\">↔</text>\n",
+       "<g id=\"edge11\" class=\"edge\">\n",
+       "<title>3&#45;&gt;4</title>\n",
+       "<path fill=\"none\" stroke=\"purple\" stroke-width=\"2\" d=\"M213.08,-80.63C207.67,-166.27 207.49,-524.74 212.52,-629.18\"/>\n",
+       "<polygon fill=\"purple\" stroke=\"purple\" stroke-width=\"2\" points=\"209.04,-629.49 213.08,-639.29 216.03,-629.11 209.04,-629.49\"/>\n",
+       "<text text-anchor=\"middle\" x=\"207.8\" y=\"-358.31\" font-family=\"Times,serif\" font-size=\"12.00\">↔</text>\n",
        "</g>\n",
        "<!-- 4&#45;&gt;1 -->\n",
-       "<g id=\"edge6\" class=\"edge\"><title>4&#45;&gt;1</title>\n",
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+       "<g id=\"edge3\" class=\"edge\">\n",
+       "<title>4&#45;&gt;1</title>\n",
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+       "<g id=\"edge8\" class=\"edge\">\n",
+       "<title>4&#45;&gt;1</title>\n",
+       "<path fill=\"none\" stroke=\"red\" d=\"M198.04,-651.33C166.16,-634.76 99.03,-592.1 62.73,-565.73\"/>\n",
+       "<polygon fill=\"red\" stroke=\"red\" points=\"64.75,-562.86 54.63,-559.72 60.58,-568.49 64.75,-562.86\"/>\n",
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        "</g>\n",
        "<!-- 4&#45;&gt;3 -->\n",
-       "<g id=\"edge24\" class=\"edge\"><title>4&#45;&gt;3</title>\n",
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-       "<text text-anchor=\"middle\" x=\"124.894\" y=\"-107.292\" font-family=\"Times,serif\" font-size=\"12.00\">↔</text>\n",
+       "<g id=\"edge12\" class=\"edge\">\n",
+       "<title>4&#45;&gt;3</title>\n",
+       "<path fill=\"none\" stroke=\"purple\" stroke-width=\"2\" d=\"M218.18,-639.37C223.59,-553.73 223.78,-195.26 218.74,-90.82\"/>\n",
+       "<polygon fill=\"purple\" stroke=\"purple\" stroke-width=\"2\" points=\"222.23,-90.51 218.18,-80.71 215.24,-90.89 222.23,-90.51\"/>\n",
+       "<text text-anchor=\"middle\" x=\"223.46\" y=\"-368.49\" font-family=\"Times,serif\" font-size=\"12.00\">↔</text>\n",
        "</g>\n",
        "<!-- 5 -->\n",
-       "<g id=\"node6\" class=\"node\"><title>5</title>\n",
+       "<g id=\"node6\" class=\"node\">\n",
+       "<title>5</title>\n",
        "</g>\n",
        "<!-- 5&#45;&gt;2 -->\n",
-       "<g id=\"edge30\" class=\"edge\"><title>5&#45;&gt;2</title>\n",
-       "<path fill=\"none\" stroke=\"black\" d=\"M260.938,-105.792C247.476,-105.792 231.204,-105.792 217.542,-105.792\"/>\n",
-       "<polygon fill=\"black\" stroke=\"black\" points=\"217.249,-102.292 207.249,-105.792 217.249,-109.292 217.249,-102.292\"/>\n",
+       "<g id=\"edge15\" class=\"edge\">\n",
+       "<title>5&#45;&gt;2</title>\n",
+       "<path fill=\"none\" stroke=\"black\" d=\"M466.87,-360C436.03,-360 385.87,-360 354.26,-360\"/>\n",
+       "<polygon fill=\"black\" stroke=\"black\" points=\"353.92,-356.5 343.92,-360 353.92,-363.5 353.92,-356.5\"/>\n",
        "</g>\n",
        "</g>\n",
        "</svg>"
@@ -1231,7 +1362,7 @@
        "<Dot visualization: custom_graph []>"
       ]
      },
-     "execution_count": 14,
+     "execution_count": 15,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1286,9 +1417,23 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 16,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/markdown": [
+       "$\\{\\{\\mathit{z0}\\},\\{\\mathit{z1},\\mathit{z2}\\},\\{\\mathit{z3},\\mathit{z4}\\}\\}$"
+      ],
+      "text/plain": [
+       "{{z0},{z1,z2},{z3,z4}}"
+      ]
+     },
+     "execution_count": 16,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     ":let ZF {zs| #x.(x:Z & closure(fusioniert)[{x}] = zs)}"
    ]
@@ -1302,7 +1447,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 32,
+   "execution_count": 17,
    "metadata": {},
    "outputs": [
     {
@@ -1314,7 +1459,7 @@
        "{({z0}↦0↦{z1,z2}),({z0}↦1↦{z1,z2}),({z1,z2}↦0↦{z3,z4}),({z1,z2}↦1↦{z3,z4}),({z3,z4}↦0↦{z3,z4}),({z3,z4}↦1↦{z3,z4})}"
       ]
      },
-     "execution_count": 32,
+     "execution_count": 17,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1325,7 +1470,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 33,
+   "execution_count": 18,
    "metadata": {},
    "outputs": [
     {
@@ -1335,7 +1480,7 @@
        "Preference changed: DOT_ENGINE = dot\n"
       ]
      },
-     "execution_count": 33,
+     "execution_count": 18,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1346,7 +1491,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 34,
+   "execution_count": 19,
    "metadata": {},
    "outputs": [
     {
@@ -1355,64 +1500,73 @@
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        "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n",
        " \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n",
-       "<!-- Generated by graphviz version 2.28.0 (20110509.1545)\n",
+       "<!-- Generated by graphviz version 2.44.1 (0)\n",
        " -->\n",
        "<!-- Title: state Pages: 1 -->\n",
-       "<svg width=\"270pt\" height=\"116pt\"\n",
-       " viewBox=\"0.00 0.00 270.00 116.02\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
-       "<g id=\"graph1\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 112.016)\">\n",
+       "<svg width=\"136pt\" height=\"218pt\"\n",
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+       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 214)\">\n",
        "<title>state</title>\n",
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+       "<title>\\{z3,z4\\}</title>\n",
+       "<polygon fill=\"#cae1ff\" stroke=\"#cae1ff\" points=\"72,-36 0,-36 0,0 72,0 72,-36\"/>\n",
+       "<text text-anchor=\"middle\" x=\"36\" y=\"-14.3\" font-family=\"Times,serif\" font-size=\"14.00\">{z3,z4}</text>\n",
        "</g>\n",
        "<!-- \\{z3,z4\\}&#45;&gt;\\{z3,z4\\} -->\n",
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+       "<title>\\{z3,z4\\}&#45;&gt;\\{z3,z4\\}</title>\n",
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+       "<g id=\"edge4\" class=\"edge\">\n",
+       "<title>\\{z3,z4\\}&#45;&gt;\\{z3,z4\\}</title>\n",
+       "<path fill=\"none\" stroke=\"sienna\" d=\"M72.31,-25.6C91.08,-26.77 108,-24.23 108,-18 108,-12.93 96.83,-10.31 82.57,-10.13\"/>\n",
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        "<!-- \\{z1,z2\\} -->\n",
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-       "<text text-anchor=\"middle\" x=\"128\" y=\"-17.8157\" font-family=\"Times,serif\" font-size=\"14.00\">{z1,z2}</text>\n",
+       "<g id=\"node2\" class=\"node\">\n",
+       "<title>\\{z1,z2\\}</title>\n",
+       "<polygon fill=\"#cae1ff\" stroke=\"#cae1ff\" points=\"72,-123 0,-123 0,-87 72,-87 72,-123\"/>\n",
+       "<text text-anchor=\"middle\" x=\"36\" y=\"-101.3\" font-family=\"Times,serif\" font-size=\"14.00\">{z1,z2}</text>\n",
        "</g>\n",
        "<!-- \\{z1,z2\\}&#45;&gt;\\{z3,z4\\} -->\n",
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+       "<g id=\"edge2\" class=\"edge\">\n",
+       "<title>\\{z1,z2\\}&#45;&gt;\\{z3,z4\\}</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M26.35,-86.61C22.19,-77.08 18.74,-65.01 21,-54 21.55,-51.3 22.33,-48.55 23.23,-45.84\"/>\n",
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+       "<title>\\{z1,z2\\}&#45;&gt;\\{z3,z4\\}</title>\n",
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        "<!-- \\{z0\\} -->\n",
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+       "<g id=\"node3\" class=\"node\">\n",
+       "<title>\\{z0\\}</title>\n",
+       "<polygon fill=\"#cae1ff\" stroke=\"#cae1ff\" points=\"63,-210 9,-210 9,-174 63,-174 63,-210\"/>\n",
+       "<text text-anchor=\"middle\" x=\"36\" y=\"-188.3\" font-family=\"Times,serif\" font-size=\"14.00\">{z0}</text>\n",
        "</g>\n",
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-       "<g id=\"edge6\" class=\"edge\"><title>\\{z0\\}&#45;&gt;\\{z1,z2\\}</title>\n",
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+       "<g id=\"edge3\" class=\"edge\">\n",
+       "<title>\\{z0\\}&#45;&gt;\\{z1,z2\\}</title>\n",
+       "<path fill=\"none\" stroke=\"firebrick\" d=\"M26.35,-173.61C22.19,-164.08 18.74,-152.01 21,-141 21.55,-138.3 22.33,-135.55 23.23,-132.84\"/>\n",
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        "</g>\n",
        "<!-- \\{z0\\}&#45;&gt;\\{z1,z2\\} -->\n",
-       "<g id=\"edge12\" class=\"edge\"><title>\\{z0\\}&#45;&gt;\\{z1,z2\\}</title>\n",
-       "<path fill=\"none\" stroke=\"sienna\" d=\"M54.3169,-7.29102C59.9867,-4.77625 66.0641,-2.54804 72,-1.21569 77.4162,-0 83.0129,-0.239126 88.469,-1.3699\"/>\n",
-       "<polygon fill=\"sienna\" stroke=\"sienna\" points=\"87.4851,-4.72877 98.0689,-4.24664 89.4945,1.97664 87.4851,-4.72877\"/>\n",
-       "<text text-anchor=\"middle\" x=\"76\" y=\"-5.21569\" font-family=\"Times,serif\" font-size=\"14.00\">0</text>\n",
+       "<g id=\"edge6\" class=\"edge\">\n",
+       "<title>\\{z0\\}&#45;&gt;\\{z1,z2\\}</title>\n",
+       "<path fill=\"none\" stroke=\"sienna\" d=\"M36,-173.8C36,-162.16 36,-146.55 36,-133.24\"/>\n",
+       "<polygon fill=\"sienna\" stroke=\"sienna\" points=\"39.5,-133.18 36,-123.18 32.5,-133.18 39.5,-133.18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"41\" y=\"-144.8\" font-family=\"Times,serif\" font-size=\"14.00\">0</text>\n",
        "</g>\n",
        "</g>\n",
        "</svg>"
@@ -1421,7 +1575,7 @@
        "<Dot visualization: expr_as_graph [δFZFδF={(({z0},0),{z1,z2}),(({z0},1),{z1,z2}),(({z1,z2},0),{z3,z4}),(({z1,z2},1),{z3,z4}),(({z3,z4},0),{z3,z4}),(({z3,z4},1),{z3,z4})} & ZF={{z0},{z1,z2},{z3,z4}}(\"0\",{a,b|a:ZF & b=δF(a, 0)})]>"
       ]
      },
-     "execution_count": 34,
+     "execution_count": 19,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1432,7 +1586,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 35,
+   "execution_count": 20,
    "metadata": {},
    "outputs": [
     {
@@ -1457,7 +1611,7 @@
        "{z3,z4}\t1\t{z3,z4}\n"
       ]
      },
-     "execution_count": 35,
+     "execution_count": 20,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1466,31 +1620,6 @@
     ":table δF"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": 36,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "ProB 2 Jupyter kernel: 1.1.1-SNAPSHOT (e52e0cac2096ac02eac65e556edce9dcd142d920)\n",
-       "ProB 2: 3.10.0 (0ee5d5eea6894b2899690565dfc3d9042098ce89)\n",
-       "ProB CLI:\n",
-       "\t1.10.0-nightly (05b24c45455b15cf94ea1daf18d2189efafa22fa)\n",
-       "\tLast changed: Tue May 19 11:43:24 2020 +0200\n",
-       "\tProlog: SICStus 4.5.1 (x86_64-darwin-17.7.0): Tue Apr  2 15:34:32 CEST 2019"
-      ]
-     },
-     "execution_count": 36,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    ":version"
-   ]
-  },
   {
    "cell_type": "code",
    "execution_count": null,
diff --git a/info4/kapitel-2/NFA_nach_DFA.ipynb b/info4/kapitel-2/NFA_nach_DFA.ipynb
index 55f2a267a5c4933c7b0c25393fb50a2e754fbe89..9735e0c4795eb6880dde63d60e5bb616b9acb1fe 100644
--- a/info4/kapitel-2/NFA_nach_DFA.ipynb
+++ b/info4/kapitel-2/NFA_nach_DFA.ipynb
@@ -100,7 +100,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Die Übergangsfunktion $\\delta$ gibt us für einen Zustand und ein Symbol die möglichen nächsten Zustände an."
+    "Die Überführungsfunktion $\\delta$ gibt uns für einen Zustand und ein Symbol die möglichen nächsten Zustände an."
    ]
   },
   {
diff --git a/info4/kapitel-3/CYK_Algorithmus.ipynb b/info4/kapitel-3/CYK_Algorithmus.ipynb
index 79917a0d46eb43a2b5b0bce6d2178d87be24db1a..d83a945820f7dc73e07cc04a00340a21e41f4dff 100644
--- a/info4/kapitel-3/CYK_Algorithmus.ipynb
+++ b/info4/kapitel-3/CYK_Algorithmus.ipynb
@@ -9,7 +9,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 74,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [
     {
@@ -18,7 +18,7 @@
        "Loaded machine: CYK"
       ]
      },
-     "execution_count": 74,
+     "execution_count": 1,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -79,7 +79,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 75,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [
     {
@@ -88,7 +88,7 @@
        "Machine constants set up using operation 0: $setup_constants()"
       ]
      },
-     "execution_count": 75,
+     "execution_count": 2,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -99,7 +99,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 76,
+   "execution_count": 3,
    "metadata": {},
    "outputs": [
     {
@@ -108,7 +108,7 @@
        "Machine initialised using operation 1: $initialise_machine()"
       ]
      },
-     "execution_count": 76,
+     "execution_count": 3,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -126,7 +126,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 77,
+   "execution_count": 4,
    "metadata": {},
    "outputs": [
     {
@@ -138,7 +138,7 @@
        "{(1↦b),(2↦a),(3↦a),(4↦b),(5↦a)}"
       ]
      },
-     "execution_count": 77,
+     "execution_count": 4,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -152,12 +152,12 @@
    "metadata": {},
    "source": [
     "Am Anfang werden die Werte für T(i,0) in der INITIALISATION der Maschine berechnet:\n",
-    "* for(i =1,2,...,n){T(i,0)={A∈N | 􏰁􏰁A→x(i) ist Regel in P};"
+    "* for(i =1,2,...,n){T(i,0)={A∈N | A→x(i) ist Regel in P};}"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 78,
+   "execution_count": 5,
    "metadata": {},
    "outputs": [
     {
@@ -184,7 +184,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 78,
+     "execution_count": 5,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -195,7 +195,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 79,
+   "execution_count": 6,
    "metadata": {},
    "outputs": [
     {
@@ -207,7 +207,7 @@
        "{S,A,B,C}"
       ]
      },
-     "execution_count": 79,
+     "execution_count": 6,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -218,7 +218,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 59,
+   "execution_count": 7,
    "metadata": {},
    "outputs": [
     {
@@ -230,7 +230,7 @@
        "{({(1↦S)}↦{(1↦A),(2↦B)}),({(1↦S)}↦{(1↦B),(2↦C)}),({(1↦A)}↦{(1↦a)}),({(1↦A)}↦{(1↦B),(2↦A)}),({(1↦B)}↦{(1↦b)}),({(1↦B)}↦{(1↦C),(2↦C)}),({(1↦C)}↦{(1↦a)}),({(1↦C)}↦{(1↦A),(2↦B)})}"
       ]
      },
-     "execution_count": 59,
+     "execution_count": 7,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -241,7 +241,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 56,
+   "execution_count": 8,
    "metadata": {},
    "outputs": [
     {
@@ -253,7 +253,7 @@
        "(1↦1)"
       ]
      },
-     "execution_count": 56,
+     "execution_count": 8,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -264,7 +264,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 22,
+   "execution_count": 9,
    "metadata": {},
    "outputs": [
     {
@@ -273,7 +273,7 @@
        "Executed operation: For_k_loop(1,1,{S,A})"
       ]
      },
-     "execution_count": 22,
+     "execution_count": 9,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -284,7 +284,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 23,
+   "execution_count": 10,
    "metadata": {},
    "outputs": [
     {
@@ -296,7 +296,7 @@
        "(2↦1)"
       ]
      },
-     "execution_count": 23,
+     "execution_count": 10,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -307,7 +307,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 24,
+   "execution_count": 11,
    "metadata": {},
    "outputs": [
     {
@@ -341,7 +341,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 24,
+     "execution_count": 11,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -352,7 +352,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 25,
+   "execution_count": 12,
    "metadata": {},
    "outputs": [
     {
@@ -361,7 +361,7 @@
        "Executed operation: For_k_loop(2,1,{B})"
       ]
      },
-     "execution_count": 25,
+     "execution_count": 12,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -372,7 +372,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 26,
+   "execution_count": 13,
    "metadata": {},
    "outputs": [
     {
@@ -384,7 +384,7 @@
        "(3↦1)"
       ]
      },
-     "execution_count": 26,
+     "execution_count": 13,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -395,7 +395,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 27,
+   "execution_count": 14,
    "metadata": {},
    "outputs": [
     {
@@ -429,7 +429,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 27,
+     "execution_count": 14,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -440,7 +440,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 28,
+   "execution_count": 15,
    "metadata": {},
    "outputs": [
     {
@@ -452,7 +452,7 @@
        "{(1↦0↦{B}),(1↦1↦{S,A}),(2↦0↦{A,C}),(2↦1↦{B}),(3↦0↦{A,C}),(4↦0↦{B}),(5↦0↦{A,C})}"
       ]
      },
-     "execution_count": 28,
+     "execution_count": 15,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -463,7 +463,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 29,
+   "execution_count": 16,
    "metadata": {},
    "outputs": [
     {
@@ -472,7 +472,7 @@
        "Executed operation: For_k_loop(3,1,{S,C})"
       ]
      },
-     "execution_count": 29,
+     "execution_count": 16,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -483,7 +483,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 30,
+   "execution_count": 17,
    "metadata": {},
    "outputs": [
     {
@@ -492,7 +492,7 @@
        "Executed operation: For_k_loop(4,1,{S,A})"
       ]
      },
-     "execution_count": 30,
+     "execution_count": 17,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -503,7 +503,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 31,
+   "execution_count": 18,
    "metadata": {},
    "outputs": [
     {
@@ -537,7 +537,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 31,
+     "execution_count": 18,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -548,7 +548,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 32,
+   "execution_count": 19,
    "metadata": {},
    "outputs": [
     {
@@ -557,7 +557,7 @@
        "Executed operation: For_k_loop(1,2,{})"
       ]
      },
-     "execution_count": 32,
+     "execution_count": 19,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -568,7 +568,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 33,
+   "execution_count": 20,
    "metadata": {},
    "outputs": [
     {
@@ -580,7 +580,7 @@
        "(2↦2)"
       ]
      },
-     "execution_count": 33,
+     "execution_count": 20,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -591,7 +591,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 34,
+   "execution_count": 21,
    "metadata": {},
    "outputs": [
     {
@@ -632,7 +632,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 34,
+     "execution_count": 21,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -643,7 +643,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 35,
+   "execution_count": 22,
    "metadata": {},
    "outputs": [
     {
@@ -652,7 +652,7 @@
        "Executed operation: For_k_loop(2,2,{B})"
       ]
      },
-     "execution_count": 35,
+     "execution_count": 22,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -663,7 +663,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 36,
+   "execution_count": 23,
    "metadata": {},
    "outputs": [
     {
@@ -672,7 +672,7 @@
        "Executed operation: For_k_loop(3,2,{B})"
       ]
      },
-     "execution_count": 36,
+     "execution_count": 23,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -683,7 +683,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 37,
+   "execution_count": 24,
    "metadata": {},
    "outputs": [
     {
@@ -724,7 +724,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 37,
+     "execution_count": 24,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -735,7 +735,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 38,
+   "execution_count": 25,
    "metadata": {},
    "outputs": [
     {
@@ -744,7 +744,7 @@
        "Executed operation: For_k_loop(1,3,{})"
       ]
      },
-     "execution_count": 38,
+     "execution_count": 25,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -755,7 +755,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 39,
+   "execution_count": 26,
    "metadata": {},
    "outputs": [
     {
@@ -803,7 +803,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 39,
+     "execution_count": 26,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -814,7 +814,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 40,
+   "execution_count": 27,
    "metadata": {},
    "outputs": [
     {
@@ -823,7 +823,7 @@
        "Executed operation: For_k_loop(2,3,{S,A,C})"
       ]
      },
-     "execution_count": 40,
+     "execution_count": 27,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -834,7 +834,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 41,
+   "execution_count": 28,
    "metadata": {},
    "outputs": [
     {
@@ -882,7 +882,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 41,
+     "execution_count": 28,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -893,7 +893,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 42,
+   "execution_count": 29,
    "metadata": {},
    "outputs": [
     {
@@ -902,7 +902,7 @@
        "Executed operation: For_k_loop(1,4,{S,A,C})"
       ]
      },
-     "execution_count": 42,
+     "execution_count": 29,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -913,7 +913,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 43,
+   "execution_count": 30,
    "metadata": {},
    "outputs": [
     {
@@ -968,7 +968,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 43,
+     "execution_count": 30,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -979,7 +979,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 46,
+   "execution_count": 31,
    "metadata": {},
    "outputs": [
     {
@@ -991,7 +991,7 @@
        "TRUE"
       ]
      },
-     "execution_count": 46,
+     "execution_count": 31,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1002,7 +1002,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 47,
+   "execution_count": 32,
    "metadata": {},
    "outputs": [
     {
@@ -1011,7 +1011,7 @@
        "Executed operation: TRUE <-- Accept()"
       ]
      },
-     "execution_count": 47,
+     "execution_count": 32,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1022,7 +1022,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 48,
+   "execution_count": 33,
    "metadata": {},
    "outputs": [
     {
@@ -1034,7 +1034,7 @@
        "(1↦5↦5)"
       ]
      },
-     "execution_count": 48,
+     "execution_count": 33,
      "metadata": {},
      "output_type": "execute_result"
     }
diff --git a/info4/kapitel-3/PDA_nach_kfG.ipynb b/info4/kapitel-3/PDA_nach_kfG.ipynb
index d6615951606f9375ce7b0abc7969733a4ecc1d08..d21054f911344d2bcac989bef5a65be320b1a51f 100644
--- a/info4/kapitel-3/PDA_nach_kfG.ipynb
+++ b/info4/kapitel-3/PDA_nach_kfG.ipynb
@@ -158,7 +158,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Die Grammatik startet mit dem Startsymbol und simuliert die Ausführung eines entsprechenden PDAs. Dabei gibt es teils mehrere Wege, aber das Wort ab wird von mindestens einem erreicht."
+    "Die Grammatik startet mit dem Startsymbol und simuliert die Ausführung eines entsprechenden PDAs. Dabei gibt es teils mehrere Wege, aber das Wort $ab$ wird von mindestens einem erreicht."
    ]
   },
   {
diff --git a/info4/kapitel-7/TuringMaschineBerechenbarkeit.ipynb b/info4/kapitel-7/TuringMaschineBerechenbarkeit.ipynb
index 6f7bacbe4308cb6c6b1ed3111b8c03e256d8ce7d..29af86cbcd2e4e90a4cd906ab3e9c10e8bac4dc6 100644
--- a/info4/kapitel-7/TuringMaschineBerechenbarkeit.ipynb
+++ b/info4/kapitel-7/TuringMaschineBerechenbarkeit.ipynb
@@ -39,7 +39,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 13,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [
     {
@@ -48,7 +48,7 @@
        "Loaded machine: TuringMachine_2"
       ]
      },
-     "execution_count": 13,
+     "execution_count": 1,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -113,7 +113,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 14,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [
     {
@@ -122,7 +122,7 @@
        "Machine constants set up using operation 0: $setup_constants()"
       ]
      },
-     "execution_count": 14,
+     "execution_count": 2,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -133,7 +133,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 15,
+   "execution_count": 3,
    "metadata": {},
    "outputs": [
     {
@@ -142,7 +142,7 @@
        "Machine initialised using operation 1: $initialise_machine()"
       ]
      },
-     "execution_count": 15,
+     "execution_count": 3,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -160,7 +160,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 16,
+   "execution_count": 4,
    "metadata": {},
    "outputs": [
     {
@@ -181,7 +181,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 16,
+     "execution_count": 4,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -192,7 +192,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 17,
+   "execution_count": 5,
    "metadata": {},
    "outputs": [
     {
@@ -201,7 +201,7 @@
        "Executed operation: GoTo(z0,I,z0,I,R)"
       ]
      },
-     "execution_count": 17,
+     "execution_count": 5,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -212,7 +212,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 18,
+   "execution_count": 6,
    "metadata": {},
    "outputs": [
     {
@@ -233,7 +233,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 18,
+     "execution_count": 6,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -244,7 +244,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 19,
+   "execution_count": 7,
    "metadata": {},
    "outputs": [
     {
@@ -253,7 +253,7 @@
        "Executed operation: GoTo(z0,I,z0,I,R)"
       ]
      },
-     "execution_count": 19,
+     "execution_count": 7,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -264,7 +264,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 20,
+   "execution_count": 8,
    "metadata": {},
    "outputs": [
     {
@@ -285,7 +285,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 20,
+     "execution_count": 8,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -296,7 +296,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 21,
+   "execution_count": 9,
    "metadata": {},
    "outputs": [
     {
@@ -305,7 +305,7 @@
        "Executed operation: GoTo(z0,I,z0,I,R)"
       ]
      },
-     "execution_count": 21,
+     "execution_count": 9,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -316,7 +316,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 22,
+   "execution_count": 10,
    "metadata": {},
    "outputs": [
     {
@@ -337,7 +337,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 22,
+     "execution_count": 10,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -348,7 +348,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 23,
+   "execution_count": 11,
    "metadata": {},
    "outputs": [
     {
@@ -357,7 +357,7 @@
        "Executed operation: GoTo(z0,I,z0,I,R)"
       ]
      },
-     "execution_count": 23,
+     "execution_count": 11,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -368,7 +368,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 24,
+   "execution_count": 12,
    "metadata": {},
    "outputs": [
     {
@@ -389,7 +389,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 24,
+     "execution_count": 12,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -400,7 +400,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 25,
+   "execution_count": 13,
    "metadata": {},
    "outputs": [
     {
@@ -409,7 +409,7 @@
        "Executed operation: GoTo(z0,I,z0,I,R)"
       ]
      },
-     "execution_count": 25,
+     "execution_count": 13,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -420,7 +420,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 26,
+   "execution_count": 14,
    "metadata": {},
    "outputs": [
     {
@@ -441,7 +441,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 26,
+     "execution_count": 14,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -452,7 +452,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 28,
+   "execution_count": 15,
    "metadata": {},
    "outputs": [
     {
@@ -461,7 +461,7 @@
        "Executed operation: GoTo(z0,Blank,z1,Blank,L)"
       ]
      },
-     "execution_count": 28,
+     "execution_count": 15,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -472,7 +472,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 29,
+   "execution_count": 16,
    "metadata": {},
    "outputs": [
     {
@@ -494,7 +494,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 29,
+     "execution_count": 16,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -505,7 +505,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 30,
+   "execution_count": 17,
    "metadata": {},
    "outputs": [
     {
@@ -514,7 +514,7 @@
        "Executed operation: GoTo(z1,I,z1,O,L)"
       ]
      },
-     "execution_count": 30,
+     "execution_count": 17,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -525,7 +525,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 31,
+   "execution_count": 18,
    "metadata": {},
    "outputs": [
     {
@@ -547,7 +547,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 31,
+     "execution_count": 18,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -558,7 +558,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 33,
+   "execution_count": 19,
    "metadata": {},
    "outputs": [
     {
@@ -567,7 +567,7 @@
        "Executed operation: GoTo(z1,I,z1,O,L)"
       ]
      },
-     "execution_count": 33,
+     "execution_count": 19,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -578,7 +578,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 34,
+   "execution_count": 20,
    "metadata": {},
    "outputs": [
     {
@@ -600,7 +600,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 34,
+     "execution_count": 20,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -611,7 +611,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 35,
+   "execution_count": 21,
    "metadata": {},
    "outputs": [
     {
@@ -620,7 +620,7 @@
        "Executed operation: GoTo(z1,I,z1,O,L)"
       ]
      },
-     "execution_count": 35,
+     "execution_count": 21,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -631,7 +631,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 36,
+   "execution_count": 22,
    "metadata": {},
    "outputs": [
     {
@@ -653,7 +653,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 36,
+     "execution_count": 22,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -664,7 +664,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 37,
+   "execution_count": 23,
    "metadata": {},
    "outputs": [
     {
@@ -673,7 +673,7 @@
        "Executed operation: GoTo(z1,I,z1,O,L)"
       ]
      },
-     "execution_count": 37,
+     "execution_count": 23,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -684,7 +684,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 38,
+   "execution_count": 24,
    "metadata": {},
    "outputs": [
     {
@@ -706,7 +706,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 38,
+     "execution_count": 24,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -717,7 +717,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 40,
+   "execution_count": 25,
    "metadata": {},
    "outputs": [
     {
@@ -726,7 +726,7 @@
        "Executed operation: GoTo(z1,I,z1,O,L)"
       ]
      },
-     "execution_count": 40,
+     "execution_count": 25,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -737,7 +737,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 41,
+   "execution_count": 26,
    "metadata": {},
    "outputs": [
     {
@@ -760,7 +760,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 41,
+     "execution_count": 26,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -771,7 +771,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 42,
+   "execution_count": 27,
    "metadata": {},
    "outputs": [
     {
@@ -780,7 +780,7 @@
        "Executed operation: GoTo(z1,Blank,ze,I,N)"
       ]
      },
-     "execution_count": 42,
+     "execution_count": 27,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -791,7 +791,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 43,
+   "execution_count": 28,
    "metadata": {},
    "outputs": [
     {
@@ -814,7 +814,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 43,
+     "execution_count": 28,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -825,7 +825,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 44,
+   "execution_count": 29,
    "metadata": {},
    "outputs": [
     {
@@ -834,7 +834,7 @@
        "Executed operation: Accept()"
       ]
      },
-     "execution_count": 44,
+     "execution_count": 29,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -852,7 +852,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 46,
+   "execution_count": 30,
    "metadata": {},
    "outputs": [
     {
@@ -875,7 +875,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 46,
+     "execution_count": 30,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -886,7 +886,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 47,
+   "execution_count": 31,
    "metadata": {},
    "outputs": [
     {
@@ -895,7 +895,7 @@
        "Executed operation: GoTo(z0,I,z0,I,R)"
       ]
      },
-     "execution_count": 47,
+     "execution_count": 31,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -906,7 +906,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 49,
+   "execution_count": 32,
    "metadata": {},
    "outputs": [
     {
@@ -915,7 +915,7 @@
        "Executed operation: GoTo(z0,O,z0,O,R)"
       ]
      },
-     "execution_count": 49,
+     "execution_count": 32,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -926,7 +926,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 50,
+   "execution_count": 33,
    "metadata": {},
    "outputs": [
     {
@@ -949,7 +949,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 50,
+     "execution_count": 33,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -960,7 +960,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 51,
+   "execution_count": 34,
    "metadata": {},
    "outputs": [
     {
@@ -969,7 +969,7 @@
        "Executed operation: GoTo(z0,O,z0,O,R)"
       ]
      },
-     "execution_count": 51,
+     "execution_count": 34,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -980,7 +980,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 52,
+   "execution_count": 35,
    "metadata": {},
    "outputs": [
     {
@@ -989,7 +989,7 @@
        "Executed operation: GoTo(z0,O,z0,O,R)"
       ]
      },
-     "execution_count": 52,
+     "execution_count": 35,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1000,7 +1000,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 53,
+   "execution_count": 36,
    "metadata": {},
    "outputs": [
     {
@@ -1009,7 +1009,7 @@
        "Executed operation: GoTo(z0,O,z0,O,R)"
       ]
      },
-     "execution_count": 53,
+     "execution_count": 36,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1020,7 +1020,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 54,
+   "execution_count": 37,
    "metadata": {},
    "outputs": [
     {
@@ -1029,7 +1029,7 @@
        "Executed operation: GoTo(z0,O,z0,O,R)"
       ]
      },
-     "execution_count": 54,
+     "execution_count": 37,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1040,7 +1040,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 55,
+   "execution_count": 38,
    "metadata": {},
    "outputs": [
     {
@@ -1049,7 +1049,7 @@
        "Executed operation: GoTo(z0,Blank,z1,Blank,L)"
       ]
      },
-     "execution_count": 55,
+     "execution_count": 38,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1060,7 +1060,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 56,
+   "execution_count": 39,
    "metadata": {},
    "outputs": [
     {
@@ -1083,7 +1083,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 56,
+     "execution_count": 39,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1094,7 +1094,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 58,
+   "execution_count": 40,
    "metadata": {},
    "outputs": [
     {
@@ -1103,7 +1103,7 @@
        "Executed operation: GoTo(z1,O,z2,I,L)"
       ]
      },
-     "execution_count": 58,
+     "execution_count": 40,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1114,7 +1114,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 59,
+   "execution_count": 41,
    "metadata": {},
    "outputs": [
     {
@@ -1137,7 +1137,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 59,
+     "execution_count": 41,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1148,7 +1148,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 60,
+   "execution_count": 42,
    "metadata": {},
    "outputs": [
     {
@@ -1157,7 +1157,7 @@
        "Executed operation: GoTo(z2,O,z2,O,L)"
       ]
      },
-     "execution_count": 60,
+     "execution_count": 42,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1168,7 +1168,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 61,
+   "execution_count": 43,
    "metadata": {},
    "outputs": [
     {
@@ -1177,7 +1177,7 @@
        "Executed operation: GoTo(z2,O,z2,O,L)"
       ]
      },
-     "execution_count": 61,
+     "execution_count": 43,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1188,7 +1188,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 62,
+   "execution_count": 44,
    "metadata": {},
    "outputs": [
     {
@@ -1197,7 +1197,7 @@
        "Executed operation: GoTo(z2,O,z2,O,L)"
       ]
      },
-     "execution_count": 62,
+     "execution_count": 44,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1208,7 +1208,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 63,
+   "execution_count": 45,
    "metadata": {},
    "outputs": [
     {
@@ -1217,7 +1217,7 @@
        "Executed operation: GoTo(z2,O,z2,O,L)"
       ]
      },
-     "execution_count": 63,
+     "execution_count": 45,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1228,7 +1228,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 64,
+   "execution_count": 46,
    "metadata": {},
    "outputs": [
     {
@@ -1237,7 +1237,7 @@
        "Executed operation: GoTo(z2,I,z2,I,L)"
       ]
      },
-     "execution_count": 64,
+     "execution_count": 46,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1248,7 +1248,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 65,
+   "execution_count": 47,
    "metadata": {},
    "outputs": [
     {
@@ -1272,7 +1272,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 65,
+     "execution_count": 47,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1283,7 +1283,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 66,
+   "execution_count": 48,
    "metadata": {},
    "outputs": [
     {
@@ -1292,7 +1292,7 @@
        "Executed operation: GoTo(z2,Blank,ze,Blank,R)"
       ]
      },
-     "execution_count": 66,
+     "execution_count": 48,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1303,7 +1303,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 67,
+   "execution_count": 49,
    "metadata": {},
    "outputs": [
     {
@@ -1327,7 +1327,7 @@
        "<Animation function visualisation>"
       ]
      },
-     "execution_count": 67,
+     "execution_count": 49,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1340,12 +1340,12 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Die Turing Maschine at 33 als Ergebnis zurückgegeben."
+    "Die Turing Maschine hat 33 als Ergebnis zurückgegeben."
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 68,
+   "execution_count": 50,
    "metadata": {},
    "outputs": [
     {
@@ -1354,7 +1354,7 @@
        "Executed operation: Accept()"
       ]
      },
-     "execution_count": 68,
+     "execution_count": 50,
      "metadata": {},
      "output_type": "execute_result"
     }