% iman.sty : Isabelle Manual Page Layout

%

\typeout{Document Style iman. Released 17 February 1994}

\hyphenation{Isa-belle man-u-script man-u-scripts ap-pen-dix mut-u-al-ly}

\hyphenation{data-type data-types co-data-type co-data-types }

\let\ts=\thinspace

%usage: \iflabelundefined{LABEL}{if not defined}{if defined}

\newcommand{\iflabelundefined}[1]{\@ifundefined{r@#1}}

%%%INDEXING  use sedindex to process the index

%index, putting page numbers of definitions in boldface

\newcommand\bold[1]{{\bf#1}}

\newcommand\fnote[1]{#1n}

\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}\@}

%%% 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 

         \small %%WAS\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}

\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

\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}

% "itmath.sty" use cmr italic for letters in math mode and get the

%              usual letter spacing of text mode.

%

% Michael Lawley, April 1993

% (lawley@cit.gu.edu.au)

%

% Derived from itma.sty (of unknown origin).

%

% MATHCODES

%

% The mathcodes for the letters A, ..., Z, a, ..., z are changed to

% generate text italic rather than math italic by default. This makes

% multi-letter identifiers look better. The mathcode for character c

% is set to "7000 (variable class) + "400 (text italic) + c.

%

% For NFSS the mathcode is "7000 (variable class) + (hex)\itfam + c

% \itfam is probably equal to 7.

%

\ifx\undefined\hexnumber@

  \def\hexnumber@#1{\ifcase#1 \z@

  \or \@ne \or \tw@ \or \thr@@

  \or 4\or 5\or 6\or 7\or 8\or

  9\or A\or B\or C\or D\or E\or F\fi}

\fi

\def\@setmcodes#1#2#3{{\count0=#1 \count1=#3

        \loop \global\mathcode\count0=\count1 \ifnum \count0<#2

        \advance\count0 by1 \advance\count1 by1 \repeat}}

\edef\@tempa{\hexnumber@\itfam}

\@setmcodes{`A}{`Z}{"7\@tempa 41}

\@setmcodes{`a}{`z}{"7\@tempa 61}

\ifx\define@mathgroup\undefined\else

        \define@mathgroup\mv@normal{\itfam}{cmr}{m}{it}\fi