\typeout{Isabelle Manual Page Layout}
% iman.sty
%
\typeout{Document Style iman. Released 15 September 1992}
\hyphenation{Isa-belle}
%%%INDEXING use sedindex to process the index
%index, putting page numbers of definitions in boldface
\newcommand\bold[1]{{\bf#1}}
\newcommand\indexbold[1]{\index{#1|bold}}
%for cross-references: 2nd argument (page number) is ignored
\newcommand\see[2]{{\it see \/}{#1}}
\newcommand\seealso[2]{{\it see also \/}{#1}}
%set argument in \tt font; at the sime time, index using * prefix
\newcommand\ttindex[1]{{\tt#1}\index{*#1}\@}
\newcommand\ttindexbold[1]{{\tt#1}\index{*#1|bold}\@}
%set argument in \bf font and index in ROMAN font (for definitions in text!)
\newcommand\bfindex[1]{{\bf#1}\index{#1|bold}\@}
%%Euro-style date: 20 September 1955
\def\today{\number\day\space\ifcase\month\or
January\or February\or March\or April\or May\or June\or
July\or August\or September\or October\or November\or December\fi
\space\number\year}
%%% underscores as ordinary characters, not for subscripting
%% use @ or \sb for subscripting; use \at for @
%% only works in \tt font
%% must not make _ an active char; would make \ttindex fail!
\gdef\underscoreoff{\catcode`\@=8\catcode`\_=\other}
\gdef\underscoreon{\catcode`\_=8\makeatother}
\chardef\other=12
\chardef\at=`\@
% alternative underscore
\def\_{\leavevmode\kern.06em\vbox{\hrule height.2ex width.3em}\hskip0.1em}
%%% \dquotes permits usage of "..." for \hbox{...} -- also taken from under.sty
{\catcode`\"=\active
\gdef\dquotes{\catcode`\"=\active \let"=\@mathText}%
\gdef\@mathText#1"{\hbox{\mathTextFont #1\/}}}
\def\mathTextFont{\frenchspacing\tt}
%%%% meta-logical connectives
\let\Forall=\bigwedge
\let\Imp=\Longrightarrow
\let\To=\Rightarrow
\newcommand\Var[1]{{?\!#1}}
%%%% ``WARNING'' environment
\def\dbend{\vtop to 0pt{\vss\hbox{\Huge\bf!}\vss}}
\newenvironment{warn}{\medskip\medbreak\begingroup \clubpenalty=10000
\baselineskip=0.9\baselineskip
\noindent \hangindent\parindent \hangafter=-2
\hbox to0pt{\hskip-\hangindent\dbend\hfill}\ignorespaces}%
{\par\endgroup\medbreak}
%%%% Standard logical symbols
\let\turn=\vdash
\let\conj=\wedge
\let\disj=\vee
\let\imp=\rightarrow
\let\bimp=\leftrightarrow
\newcommand\all[1]{\forall#1.} %quantification
\newcommand\ex[1]{\exists#1.}
\newcommand{\pair}[1]{\langle#1\rangle}
\newenvironment{example}{\begin{Example}\rm}{\end{Example}}
\newtheorem{Example}{Example}[chapter]
\newcommand\lbrakk{\mathopen{[\![}}
\newcommand\rbrakk{\mathclose{]\!]}}
\newcommand\List[1]{\lbrakk#1\rbrakk} %was \obj
\newcommand\vpile[1]{\begin{array}{c}#1\end{array}}
\let\int=\cap
\let\un=\cup
\let\inter=\bigcap
\let\union=\bigcup
\newcommand{\rew}{\mathop{\longrightarrow}}
\newcommand{\rewer}{\mathop{\longleftrightarrow}}
\def\ML{{\sc ml}}
\def\OBJ{{\sc obj}}
\def\LCF{{\tt LCF}\@}
\def\FOL{{\tt FOL}\@}
\def\HOL{{\tt HOL}\@}
\def\LK{{\tt LK}\@}
\def\ZF{{\tt ZF}\@}
\def\CTT{{\tt CTT}\@}
\def\Cube{{\tt Cube}}
\def\Modal{{\tt Modal}}
%macros to change the treatment of symbols
\def\relsemicolon{\mathcode`\;="303B} %treat ; like a relation
\def\binperiod{\mathcode`\.="213A} %treat . like a binary operator
\def\binvert{\mathcode`\|="226A} %treat | like a binary operator
%redefinition of \sloppy and \fussy to use \emergencystretch
\def\sloppy{\tolerance2000 \hfuzz.5pt \vfuzz.5pt \emergencystretch=15pt}
\def\fussy{\tolerance200 \hfuzz.1pt \vfuzz.1pt \emergencystretch=0pt}
\chardef\ttilde=`\~ % A tilde for \tt font
\chardef\ttback=`\\ % A backslash for \tt font
\chardef\ttlbrace=`\{ % A left brace for \tt font
\chardef\ttrbrace=`\} % A right brace for \tt font
\newfont{\sltt}{cmsltt10} %% for output from terminal sessions
\newcommand\out{\ \sltt}
%Indented, boxed alltt environment; uses \small\tt font
%\leftmargini is LaTeX's first-level indentation for items (2.5em)
%@endparenv is LaTeX's trick for preventing indentation of next paragraph
\newenvironment{ttbox}{\par\nobreak\vskip-2pt
\vbox\bgroup \small\begin{alltt} \leftskip\leftmargini}%
{\end{alltt}\egroup\vskip-7pt\@endparenv}
\newcommand\ttbreak{\end{ttbox}\vskip-10pt\begin{ttbox}}
%%%Put first chapter on odd page, with arabic numbering; like \cleardoublepage
\newcommand\clearfirst{\clearpage\ifodd\c@page\else
\hbox{}\newpage\if@twocolumn\hbox{}\newpage\fi\fi
\pagenumbering{arabic}}
%%%Ruled chapter headings
\def\@rulehead#1{\hrule height1pt \vskip 14pt \Huge \bf
#1 \vskip 14pt\hrule height1pt}
\def\@makechapterhead#1{ { \parindent 0pt
\ifnum\c@secnumdepth >\m@ne \raggedleft\large\bf\@chapapp{} \thechapter \par
\vskip 20pt \fi \raggedright \@rulehead{#1} \par \nobreak \vskip 40pt } }
\def\@makeschapterhead#1{ { \parindent 0pt \raggedright
\@rulehead{#1} \par \nobreak \vskip 40pt } }
%
% MATHCODES
%
% The mathcodes for the letters A, ..., Z, a, ..., z are changed to
% generate text italic font rather than math italic by default. This makes
% multi-letter identifiers look better. The mathcode for character c
% is set to "7000 (variable family) + "400 (text italic) + c.
% See the TeXBook, page 154.
\def\@setmcodes#1#2#3{{\count0=#1 \count1=#3
\loop \global\mathcode\count0=\count1 \ifnum \count0<#2
\advance\count0 by1 \advance\count1 by1 \repeat}}
\@setmcodes{`A}{`Z}{"7441}
\@setmcodes{`a}{`z}{"7461}