added eq_iff_swap for creating symmetric variants of thms; applied it in List.
\documentclass[11pt,a4paper]{article}
\usepackage[T1]{fontenc}
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\usepackage{isabelle,isabellesym,pdfsetup}
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\isabellestyle{it}
\begin{document}
\title{Examples of Inductive and Coinductive Definitions in HOL}
\author{Stefan Berghofer \\ Tobias Nipkow \\ Lawrence C Paulson \\ Markus Wenzel}
\maketitle
\begin{abstract}
This is a collection of small examples to demonstrate Isabelle/HOL's
(co)inductive definitions package. Large examples appear on many other
sessions, such as Lambda, IMP, and Auth.
\end{abstract}
\tableofcontents
\newpage
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\input{session}
\end{document}