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\begin{savequote}[11cm]
(6)  It is easier to move a problem around (for example, by moving the problem to a different part of the overall network architecture) than it is to solve it.

(6a) (corollary). It is always possible to add another level of  indirection.

\qauthor{Ross Callon -- RFC1925,  ``The Twelve Networking Truths''}
\end{savequote}



\chapter{Etat de l'art}\label{chap:etat_de_lart}
\addtocontents{def}{\protect\addvspace{\baselineskip}}
\cftchapterprecistoc{Travaux des autres : principes et formalisations}


%RESUME du chapitre %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{resume}
	Ce chapitre commence par définir les notions dont on a besoin.

	L'annexe~\ref{annexe:A} synthétise les symboles utilisés pour les définitions de ce chapitre.
\end{resume}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


	\lettrine{O}{n} commence doucement

\section{La cosmologie}

	Cosmologie : branche de l'astronomie qui étudie la structure d'ensemble et l'évolution de l'Univers.

\section{Les choux}

	Choux : plante crucifère dont les nombreuses variétés (chou cabus, chou de Bruxelles, chou-fleur) sont cultivées pour l'alimentation.

\section{La bigarration}

	Bigarrer : marquer de couleurs disparates et non harmonieuses

\section{Synthèse}

	Synthèse de l'état de l'art et ouverture
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