src/HOL/Examples/document/root.tex

prefer sign-agnostic conversion following bit structure

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

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


\hyphenation{Isabelle}

\begin{document}

\title{Notable Examples in Isabelle/HOL}
\maketitle

\tableofcontents

\parindent 0pt \parskip 0.5ex

\input{session}

\bibliographystyle{abbrv}
\bibliography{root}

\end{document}