src/ZF/UNITY/Increasing.thy

--- a/src/ZF/UNITY/Increasing.thy	Thu Jul 23 14:20:51 2015 +0200
+++ b/src/ZF/UNITY/Increasing.thy	Thu Jul 23 14:25:05 2015 +0200
@@ -6,7 +6,7 @@
 relation r over the domain A. 
 *)
 
-section{*Charpentier's "Increasing" Relation*}
+section\<open>Charpentier's "Increasing" Relation\<close>
 
 theory Increasing imports Constrains Monotonicity begin