\documentclass[12pt,a4paper,fleqn]{article}
\usepackage{latexsym,graphicx}
\usepackage{iman,extra,isar}
\usepackage{isabelle,isabellesym}
\usepackage{style}
\usepackage{pdfsetup}
\hyphenation{Isabelle}
\hyphenation{Isar}
\isadroptag{theory}
\title{\includegraphics[scale=0.5]{isabelle_isar}
\\[4ex] The {Isabelle/HOL} type-class hierarchy}
\author{\emph{Florian Haftmann}}
\begin{document}
\maketitle
\begin{abstract}
\noindent This primer introduces corner stones of the {Isabelle/HOL}
type-class hierarchy and gives some insights into its internal
organization.
\end{abstract}
\thispagestyle{empty}\clearpage
\pagenumbering{roman}
\clearfirst
\input{Typeclass_Hierarchy.tex}
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\end{document}