From 2236ef5d691749745e6716ab4ac43f54e1ff0ed5 Mon Sep 17 00:00:00 2001
From: Jeff LANCE <jeff.lance@mala.fr>
Date: Mon, 21 Aug 2017 17:26:22 +0200
Subject: [PATCH] Update.

---
 cours/cours_prof.cls | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/cours/cours_prof.cls b/cours/cours_prof.cls
index 8f58a1d..c375314 100644
--- a/cours/cours_prof.cls
+++ b/cours/cours_prof.cls
@@ -434,6 +434,16 @@
   \end{thm*}
 }
 
+\RenewDocumentEnvironment{thmn}{ o } {%begin
+  \IfNoValueTF {#1} {
+    \begin{thmn*}
+  }{
+    \begin{thmn*}[#1]
+  }
+}{%end
+  \end{thmn*}
+}
+
 \RenewDocumentEnvironment{ppt}{ o } {%begin
   \IfNoValueTF {#1} {
     \begin{ppt*}
@@ -454,6 +464,26 @@
   \end{pptn*}
 }
 
+\RenewDocumentEnvironment{pre}{ o } {%begin
+  \IfNoValueTF {#1} {
+    \begin{pre*}
+  }{
+    \begin{pre*}[#1]
+  }
+}{%end
+  \end{pre*}
+}
+
+\RenewDocumentEnvironment{pren}{ o } {%begin
+  \IfNoValueTF {#1} {
+    \begin{pren*}
+  }{
+    \begin{pren*}[#1]
+  }
+}{%end
+  \end{pren*}
+}
+
 \RenewDocumentEnvironment{exe}{ o } {%begin
   \IfNoValueTF {#1} {
     \begin{exe*}