src/HOL/MicroJava/document/root.tex

improved section markup;

\documentclass[11pt,a4paper]{article}
\usepackage{isabelle,isabellesym,pdfsetup}

\addtolength{\hoffset}{-1,5cm}
\addtolength{\textwidth}{4cm}
\addtolength{\voffset}{-2cm}
\addtolength{\textheight}{4cm}

\renewcommand{\thesection}{\arabic{section}}
\renewcommand{\isamarkupheader}[1]{\newpage\section{#1}}

\pagestyle{headings}


\begin{document}

\tableofcontents
\parindent 0pt \parskip 0.5ex
\newpage

\input{session}

\end{document}