\documentclass[11pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage[only,bigsqcap]{stmaryrd}
\usepackage{ifthen,proof,amssymb,isabelle,isabellesym}
\isabellestyle{it}
\usepackage{pdfsetup}\urlstyle{rm}

\newcommand{\DUMMYPROOF}{{\langle\mathit{proof}\rangle}}
\newcommand{\dummyproof}{$\DUMMYPROOF$}

\hyphenation{Isabelle}

\begin{document}

\title{Miscellaneous Isabelle/Isar examples}
\author{Makarius Wenzel \\[2ex]
  With contributions by Gertrud Bauer and Tobias Nipkow}
\maketitle

\begin{abstract}
  Isar offers a high-level proof (and theory) language for Isabelle.
  We give various examples of Isabelle/Isar proof developments,
  ranging from simple demonstrations of certain language features to a
  bit more advanced applications.  The ``real'' applications of
  Isabelle/Isar are found elsewhere.
\end{abstract}

\tableofcontents

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\input{session}

\nocite{isabelle-isar-ref,Wenzel:1999:TPHOL}
\bibliographystyle{abbrv}
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\end{document}