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\usepackage{graphicx}
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\usepackage{float}
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\usepackage{amssymb}
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\usepackage{color}
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\usepackage{listings}
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\newcommand{\id}{\text{id}}
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\newcommand{\N}{\mathbb{N}}
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\newcommand{\Z}{\mathbb{Z}}
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\newcommand{\R}{\mathbb{R}}
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\newcommand{\cat}[1]{\mathbf{#1}}
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\newcommand{\Ch}[1]{\mathbf{Ch}(#1)}
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\newcommand{\Hom}[3]{\mathbf{Hom}_{#1}(#2, #3)}
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\newcommand{\iso}{\cong}
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\newcommand{\tot}[1]{\xrightarrow{\,\,{#1}\,\,}}
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\newcommand{\eps}{\varepsilon}
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\newcommand{\I}{\,\mid\,}
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\newcommand{\then}{\Rightarrow}
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\newcommand{\inject}{\hookrightarrow}
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\newcommand{\del}{\partial}
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\newcommand{\nsubgrp}{\trianglelefteq}
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% relative to the one who includes us :(
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\graphicspath{ {../images/} }
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\newcommand{\todo}[1]{
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\addcontentsline{tdo}{todo}{\protect{#1}}
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$\ast$ \marginpar{\tiny $\ast$ #1}
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}
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\makeatletter
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\newcommand \listoftodos{\section*{Todo list} \@starttoc{tdo}}
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\newcommand\l@todo[2]{
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\par\noindent \textit{#2}, \parbox{10cm}{#1}\par
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}
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\makeatother
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