src/HOL/Combinatorics/document/root.tex

consolidated attribute name

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

\isabellestyle{literal}
\usepackage{pdfsetup}\urlstyle{rm}


\hyphenation{Isabelle}

\begin{document}

\title{Basic combinatorics in Isabelle/HOL (and the Archive of Formal Proofs)}
\maketitle

\tableofcontents

\parindent 0pt \parskip 0.5ex

\input{session}

\end{document}