diff --git a/org.rodinp.handbook.feature/latex/reference-03.tex b/org.rodinp.handbook.feature/latex/reference-03.tex
index 6eb20353c7b8f4e1edc323ae39b6550bac06c7a9..7fb1f3046be509c22c13d46535447034187ef3cc 100644
--- a/org.rodinp.handbook.feature/latex/reference-03.tex
+++ b/org.rodinp.handbook.feature/latex/reference-03.tex
@@ -184,8 +184,7 @@ The following reference subsections will have the form the form: \\[2em]
 \index{true!as predicate@as predicate ($\btrue$)}\index{false!as predicate@as predicate ($\bfalse$)}
 \index{$\btrue$ (true)}
 \index{$\bfalse$ (false)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\btrue$  & \texttt{true}  & True \\
   $\bfalse$ & \texttt{false} & False \\
@@ -204,8 +203,7 @@ The following reference subsections will have the form the form: \\[2em]
 \index{conjunction@conjunction ($\land$)}\index{disjunction@disjunction ($\lor$)}\index{implication@implication ($\limp$)}\index{equivalence@equivalence ($\leqv$)}\index{negation@negation ($\lnot$)}
 \index{$\land$ (conjunction)}\index{$\lor$ (disjunction)}\index{$\limp$ (implication)}\index{$\leqv$ (equivalence)}\index{$\lnot$ (negation)}
 
-\hline
-\vspace{5mm}
+
 
 \begin{rrnames}
   $\land$  & \texttt{\&}  & Conjunction \\
@@ -261,8 +259,7 @@ The following reference subsections will have the form the form: \\[2em]
 \index{quantification!universal@universal ($\forall$)}
 \index{quantification!existential@existential ($\exists$)}
 
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\forall$ & \texttt{!} & Universal quantification \\
   $\exists$ & \texttt{\#} & Existential quantification \\
@@ -310,8 +307,7 @@ The following reference subsections will have the form the form: \\[2em]
 \subsubsection{Equality}
 \label{equality}
 \index{equality@equality ($=$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $=$    & \texttt{=}  & equality \\
   $\neq$ & \texttt{/=} & inequality \\
@@ -333,8 +329,7 @@ The following reference subsections will have the form the form: \\[2em]
 \subsubsection{Membership}
 \label{membership}
 \index{membership@membership ($\in$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\in$     & \texttt{:}  & set membership \\
   $\not\in$ & \texttt{/:} & negated set membership \\
@@ -360,8 +355,7 @@ The following reference subsections will have the form the form: \\[2em]
 \index{boolean!the operator $\bool$}
 \index{true!as expression ($\True$)}
 \index{false!as expression ($\False$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\Bool$     & \texttt{BOOL}    & Boolean values \\
   $\True$     & \texttt{TRUE}    & Boolean true \\
@@ -399,8 +393,7 @@ The following reference subsections will have the form the form: \\[2em]
 \subsubsection{Set comprehensions}
 \label{set_comprehensions}
 \index{set!comprehension set}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\{~\textit{ids}~\qdot~\predp~|~\expre~\}$     & \texttt{\{\textit{ids}.P|E\}}    & Set comprehension \\
   $\{~\expre~|~\predp~\}$                        & \texttt{\{E|P\}}      & Set comprehension (short form)\\
@@ -438,8 +431,7 @@ The following reference subsections will have the form the form: \\[2em]
 \subsubsection{Basic sets}
 \index{set!empty set@empty set ($\emptyset$)}
 \index{set!set extension}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\emptyset$     & \texttt{\{\}}        & Empty set \\
   $\{\textit{exprs}\}$    & \texttt{\{\textit{exprs}\}}  & Set extension \\
@@ -466,8 +458,7 @@ The following reference subsections will have the form the form: \\[2em]
 \subsubsection{Subsets}
 \label{subsets}
 \index{subset@subset ($\subseteq,\subset$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\subseteq$     & \texttt{<:}  & subset \\
   $\not\subseteq$ & \texttt{/<:}  & not a subset \\
@@ -501,8 +492,7 @@ The following reference subsections will have the form the form: \\[2em]
 \index{set!difference set@difference set ($\setminus$)}
 \index{set!set subtraction@set subtraction ($\setminus$)}
 \index{subtraction!of sets@of sets ($\setminus$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\bunion$   & \texttt{\mybackslash/} & Union \\
   $\binter$   & \texttt{/\mybackslash} & Intersection \\
@@ -529,8 +519,7 @@ The following reference subsections will have the form the form: \\[2em]
 \begin{samepage}
 \subsubsection{Power sets}
 \index{set!power set@power set ($\pow$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\pow$      & \texttt{POW}  & Power set \\
   $\pow_1$    & \texttt{POW1} & Set of non-empty subsets \\
@@ -556,8 +545,7 @@ The following reference subsections will have the form the form: \\[2em]
 \index{set!finite}
 \index{set!cardinality@cardinality ($\card$)}
 \index{cardinality@cardinality ($\card$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\bfinite$ & \texttt{finite} & Finite set \\
   $\card$    & \texttt{card}   & Cardinality of a finite set \\
@@ -585,8 +573,7 @@ The following reference subsections will have the form the form: \\[2em]
 \label{partition}
 \index{partition}
 \index{set!partition}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\bpartition$ & \texttt{partition} & Partitions of a set \\
 \end{rrnames}
@@ -611,8 +598,7 @@ The following reference subsections will have the form the form: \\[2em]
 \subsubsection{Generalized union and intersection}
 \index{union!generalized union}
 \index{intersection!generalized intersection@generalized intersection ($\bunaryinter$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\bunaryunion$ & \texttt{union} & Generalized union \\
   $\bunaryinter$ & \texttt{inter} & Generalized intersection \\
@@ -638,8 +624,7 @@ The following reference subsections will have the form the form: \\[2em]
 \subsubsection{Quantified union and intersection}
 \index{union!quantified union@quantified union ($\Union$)}
 \index{intersection!quantified intersection@quantified intersection ($\Inter$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\Union$ & \texttt{UNION} & Quantified union \\
   $\Inter$ & \texttt{INTER} & Quantified intersection \\
@@ -683,8 +668,7 @@ The following reference subsections will have the form the form: \\[2em]
 \index{pair}
 \index{maplet@maplet ($\mapsto$)}
 \index{Cartesian product@Cartesian product ($\cprod$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\mapsto$ & \texttt{|->} & Pair \\
   $\cprod$  & \texttt{**}  & Cartesian product
@@ -709,8 +693,7 @@ The following reference subsections will have the form the form: \\[2em]
 \begin{samepage}
 \subsubsection{Relations}
 \index{relation@relation ($\rel$,$\trel$,$\srel$,$\strel$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\rel$   & \texttt{<->} & Relations \\
   $\trel$  & \texttt{<}\texttt{<->} & Total relations \\
@@ -747,8 +730,7 @@ The following reference subsections will have the form the form: \\[2em]
 \label{domain_and_range}
 \index{domain@domain ($\dom$)}
 \index{range@range ($\ran$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\dom$  & \texttt{dom} & Domain \\
   $\ran$  & \texttt{ran} & Range \\
@@ -779,8 +761,7 @@ The following reference subsections will have the form the form: \\[2em]
 \index{domain subtraction@domain subtraction ($\domsub$)}
 \index{range restriction@range restriction ($\ranres$)}
 \index{range subtraction@range subtraction ($\ransub$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\domres$  & \texttt{<|}           & Domain restriction\\
   $\domsub$  & \texttt{<}\texttt{<|} & Domain subtraction\\
@@ -825,8 +806,7 @@ The following reference subsections will have the form the form: \\[2em]
 \index{relation!direct product ($\dprod$)}
 \index{inverse ($\mbox{}^{-1}$)}
 \index{relation!inverse ($\mbox{}^{-1}$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\fcomp$    & \texttt{;}                  & Relational forward composition\\
   $\bcomp$    & \texttt{circ}               & Relational backward composition\\
@@ -888,8 +868,7 @@ The following reference subsections will have the form the form: \\[2em]
 \label{relational_image}
 \index{relational image}
 \index{relation!image}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $[\ldots]$  & \texttt{[}\ldots\texttt{]}  & Relational image
 \end{rrnames}
@@ -912,8 +891,7 @@ The following reference subsections will have the form the form: \\[2em]
 \index{identity relation@identity relation ($\id$)}
 \index{relation!identity ($\id$)}
 \index{projection@projection ($\prjone$,$\prjtwo$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\id$      & \texttt{id}   & Identity relation \\
   $\prjone$  & \texttt{prj1} & First projection \\
@@ -952,8 +930,7 @@ The following reference subsections will have the form the form: \\[2em]
 \index{injection@injection ($\pinj$,$\tinj$)}
 \index{surjection@surjection ($\psur$,$\tsur$)}
 \index{bijection@bijection ($\tbij$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\pfun$  & \texttt{+->}   & Partial functions\\
   $\tfun$  & \texttt{-->}   & Total functions \\
@@ -1000,8 +977,7 @@ The following reference subsections will have the form the form: \\[2em]
 \subsubsection{Function application}
 \label{function_application}
 \index{function application}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $(\ldots)$  & \texttt{(}\ldots\texttt{)}  & Function application
 \end{rrnames}
@@ -1023,8 +999,7 @@ The following reference subsections will have the form the form: \\[2em]
 \subsubsection{Lambda}
 \label{lambda}
 \index{lambda@lamba expression ($\lambda$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\lambda$  & \texttt{\%}  & Lambda
 \end{rrnames}
@@ -1070,8 +1045,7 @@ The following reference subsections will have the form the form: \\[2em]
 \subsubsection{Sets of numbers}
 \index{integer!as set@as set ($\intg$)}
 \index{natural numbers@natural numbers ($\nat$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\intg$  & \texttt{INT}  & Integers \\
   $\nat$   & \texttt{NAT}  & Natural numbers, starting with 0 \\
@@ -1113,8 +1087,7 @@ The following reference subsections will have the form the form: \\[2em]
 \index{modulo@modulo ($\bmod$)}
 \index{reminder|see{modulo}}
 \index{exponentation@exponentation ($\expn$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $+$      & \texttt{+}   & Addition \\
   $-$      & \texttt{-}   & Subtraction or unary minus \\
@@ -1156,8 +1129,7 @@ The following reference subsections will have the form the form: \\[2em]
 \label{minimum_and_maximum}
 \index{minimum@minimum ($\min$)}
 \index{maximum@maximum ($\max$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\min$      & \texttt{min}   & Minimum \\
   $\max$      & \texttt{max}   & Maximum
@@ -1182,8 +1154,7 @@ The following reference subsections will have the form the form: \\[2em]
 \subsection{Typing}
 \label{typing}
 \index{oftype operator ($\boftype$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\boftype$      & \texttt{oftype}   & of type
 \end{rrnames}
@@ -1231,8 +1202,7 @@ The following reference subsections will have the form the form: \\[2em]
 \subsubsection{Deterministic Assignments}
 \label{deterministic_assignments}
 \index{assignment!deterministic ($\bcmeq$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\bcmeq$ & \texttt{:=} & deterministic assignment
 \end{rrnames}
@@ -1276,8 +1246,7 @@ The following reference subsections will have the form the form: \\[2em]
 \index{assignment!become such@become such ($\bcmsuch$)}
 \index{become such@become such assignment ($\bcmsuch$)}
 \index{before-after predicate}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\bcmsuch$ & \texttt{:|} & non-deterministic assignment with a before-after-predicate
 \end{rrnames}
@@ -1315,8 +1284,7 @@ The following reference subsections will have the form the form: \\[2em]
 \subsubsection{Non-deterministic assignment by sets}
 \index{assignment!become element of@become element of ($\bcmin$)}
 \index{become element of@become element of assignment ($\bcmin$)}
-\hline
-\vspace{5mm}
+
 \begin{rrnames}
   $\bcmin$ & \texttt{::} & non-deterministic assignment of a set member
 \end{rrnames}