\documentclass{report}
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\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{txfonts}
\usepackage{chicago}
\usepackage{aliascnt}
\usepackage{tikz}
\usepackage{calc}
\usepackage[ruled]{algorithm2e}
\usetikzlibrary{matrix,fit,backgrounds,decorations.pathmorphing,positioning}
\usepackage{listings}

\lstset{basicstyle=\tt,flexiblecolumns=false}

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\def\range{\mathop{\rm ran}\nolimits}
\def\identity{\mathop{\rm Id}\nolimits}
\def\diff{\mathop{\Delta}\nolimits}

\providecommand{\floor}[1]{\left\lfloor#1\right\rfloor}

\begin{document}

\title{Integer Set Library: Manual\\
\small Version: \input{version} }
\author{Sven Verdoolaege}

\maketitle
\tableofcontents

\chapter{User Manual}

\input{user}

\chapter{Implementation Details}

\input{implementation}

\bibliography{isl}
\bibliographystyle{chicago}

\end{document}