src/Doc/Tutorial/document/root.tex

added lemma

\documentclass{article}
\usepackage{cl2emono-modified,isabelle,isabellesym}
\usepackage{proof,amsmath,amsfonts}
\usepackage{latexsym,wasysym,verbatim,graphicx,tutorial,ttbox,comment}
\usepackage{eurosym}
\usepackage[english]{babel}
\usepackage{pdfsetup}   
%last package!

\remarkstrue          %TRUE causes remarks to be displayed (as marginal notes)
%\remarksfalse

\makeindex

\index{conditional expressions|see{\isa{if} expressions}}
\index{primitive recursion|see{recursion, primitive}}
\index{product type|see{pairs and tuples}}
\index{structural induction|see{induction, structural}}
\index{termination|see{functions, total}}
\index{tuples|see{pairs and tuples}}
\index{*<*lex*>|see{lexicographic product}}

\underscoreoff

\setcounter{secnumdepth}{2} \setcounter{tocdepth}{2}  %% {secnumdepth}{2}???

\pagestyle{headings}


\begin{document}
\title{
\begin{center}
\includegraphics[scale=.8]{isabelle_hol}
       \\ \vspace{0.5cm} A Proof Assistant for Higher-Order Logic
\end{center}}
\author{Tobias Nipkow \quad Lawrence C. Paulson \quad Markus Wenzel%\\[1ex]
%Technische Universit{\"a}t M{\"u}nchen \\
%Institut f{\"u}r Informatik \\[1ex]
%University of Cambridge\\
%Computer Laboratory
}
\pagenumbering{roman}
\maketitle
\newpage

%\setcounter{page}{5}
%\vspace*{\fill}
%\begin{center}
%\LARGE In memoriam \\[1ex]
%{\sc Annette Schumann}\\[1ex]
%1959 -- 2001
%\end{center}
%\vspace*{\fill}
%\vspace*{\fill}
%\newpage

\input{preface}

\tableofcontents

\cleardoublepage\pagenumbering{arabic}

\part{Elementary Techniques}
\input{basics}
\input{fp}
\input{documents0}

\part{Logic and Sets}
\input{rules}
\input{sets}
\input{inductive0}

\part{Advanced Material}
\input{types0}
\input{advanced0}
\input{protocol}

\markboth{}{}
\cleardoublepage
\vspace*{\fill}
\begin{flushright}
\begin{tabular}{l}
{\large\sf\slshape You know my methods. Apply them!}\\[1ex]
Sherlock Holmes
\end{tabular}
\end{flushright}
\vspace*{\fill}
\vspace*{\fill}

\underscoreoff

\input{appendix0}

\bibliographystyle{plain}
\bibliography{manual}
\underscoreoff
\printindex
\end{document}