diff --git a/cours.cls b/cours.cls
index c5f3621..50fcfb5 100644
--- a/cours.cls
+++ b/cours.cls
@@ -77,7 +77,7 @@
         {%
           \baselineskip=2\baselineskip
           {\LARGE \textsc{Module \@module}}\\
-          \baselineskip=0.5\baselineskip
+          %\baselineskip=0.5\baselineskip
         }
         \vspace{1cm}\vfill
         \@ifundefined{@title}
@@ -178,9 +178,9 @@
 			\endthmbox\vspace*{.75ex}\end{minipage}\end{center}%
 }
 
-\NewDocumentEnvironment{lemEM}{o}{%
+\NewDocumentEnvironment{lemme}{o}{%
 	\begin{center}\begin{minipage}{0.8\textwidth}
-			\thmbox[M]{\textbf{Lemme ergodique maximal \IfNoValueTF{#1}{}{\em (#1)}}}%
+			\thmbox[M]{\textbf{Lemme \IfNoValueTF{#1}{}{\em (#1)}}}%
 			%\hspace*{-1.5em}%
 		}
 		{%
@@ -188,5 +188,6 @@
 }
 
 \newenvironment{rem}{\par\textbf{Remarque: }\nopagebreak}{\par}
-\newenvironment{exemple}{\par\textbf{Exemple: }\nopagebreak}{\par}
+\newenvironment{exemple}[1][\unskip]{\par\textbf{Exemple: }\textit{#1}
+  \nopagebreak}{\par}
 \newenvironment{preuve}{\par\textit{Démonstration: }\nopagebreak}{\par}
diff --git a/raccourcis.sty b/raccourcis.sty
index 8b8c084..5797307 100755
--- a/raccourcis.sty
+++ b/raccourcis.sty
@@ -37,7 +37,7 @@
 \newcommand{\dd}[2]{\frac{\text{d} #1}{\text{d} #2}}
 \newcommand{\ddd}[2]{\frac{\text{d}^2 #1}{\text{d} {#2}^2}}
 \newcommand{\dr}[2]{\frac{\partial #1}{\partial #2}}
-
+\newcommand{\divv}{\text{div}}
 % Macros mieux :)
 \newcommand{\chimie}[1]{$\mathrm{#1}$}
 \newcommand{\chimiecite}[1]{\[\mathrm{#1}\]}