make WWW_Find work again, now that its ML modules reside within a theory context (cf. bf5b45870110) -- patch by Rafal Kolanski;
\documentclass[11pt,a4paper]{article}
\usepackage{isabelle,isabellesym}
\usepackage[utf8]{inputenc}
\usepackage{pdfsetup}
\urlstyle{rm}
\isabellestyle{it}
\begin{document}
\title{Examples of Inductive and Coinductive Definitions in ZF}
\author{Lawrence C Paulson and others}
\maketitle
\tableofcontents
\parindent 0pt\parskip 0.5ex
\input{session}
\bibliographystyle{abbrv}
\bibliography{root}
\end{document}