diff --git a/presentation/presentation.pdf b/presentation/presentation.pdf
index 64895fa..ab21029 100644
Binary files a/presentation/presentation.pdf and b/presentation/presentation.pdf differ
diff --git a/presentation/presentation.tex b/presentation/presentation.tex
index 18e5b55..2b49f89 100644
--- a/presentation/presentation.tex
+++ b/presentation/presentation.tex
@@ -212,15 +212,19 @@
 
 \begin{frame}  
   { \Huge Autres protocoles artificiels }
-  \begin{block}{Autres protocoles artificiels formels}
+  \begin{block}{Les vues}
   \begin{itemize}
   \item Vues perspective (ISO...) % TODO
   \item Vue éclatée
-  \item Notation mathématique
   \end{itemize}
+  \end{block}
+  \begin{block}{Notation mathématique}
+  \begin{center}
+  \includegraphics[height=1.5cm]{./include/formule.jpg}
+  \end{center}
+  \end{block}
 % TODO : une vue éclatée
 % TODO : une formule
-\end{block}
 \end{frame}
 
 \section{Conclusion}