src/HOL/Homology/document/root.tex

proper type-setting of cartouches (requires T1);
\usepackage[T1]{fontenc} is default for mkroot;
\usepackage[utf8]{inputenc} is obsolete in lualatex;

\documentclass[11pt,a4paper]{book}
\usepackage[T1]{fontenc}
\usepackage{graphicx}
\usepackage{isabelle}
\usepackage{isabellesym}
\usepackage{latexsym}
\usepackage{textcomp}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage[only,bigsqcap]{stmaryrd}
\usepackage{pdfsetup}

\usepackage{tocloft}
\setlength{\cftsubsecnumwidth}{3em}
\cftsetpnumwidth{2em}
\cftsetrmarg{3em}

\urlstyle{rm}
\isabellestyle{literalunderscore}
\pagestyle{myheadings}

\begin{document}

\title{Homology}
\maketitle

\tableofcontents

\begin{center}
  \includegraphics[height=\textheight]{session_graph}
\end{center}

\newpage

\renewcommand{\setisabellecontext}[1]{\markright{\href{#1.html}{#1.thy}}}

\parindent 0pt\parskip 0.5ex
\input{session}

\pagestyle{headings}
\bibliographystyle{abbrv}

\end{document}