memoire-m2

diff --git a/sections/presentation.tex b/sections/presentation.tex
@@ -420,10 +420,9 @@ we get branched double cover \(S_g \to S_{0, 2g+2}\).
 \end{minipage}
 \medskip
 
-Wajnryb used the \(k\)-chain relations and the hyperelliptic relations to
-derive a presentation of the mapping class group of a closed surface,
-which is widely considered to the the standard presentation of
-\(\Mod(S_g)\) \cite{wajnryb}.
+Wajnryb \cite{wajnryb} used the \(k\)-chain relations and the hyperelliptic
+relations to derive a presentation of the mapping class group of a closed
+surface.
 
 \begin{theorem}[Wajnryb]\label{thm:wajnryb-presentation}
   If \(\alpha_0, \ldots, \alpha_g\) are as in Figure~\ref{fig:humphreys-gens}