src/HOL/Equiv_Relations.thy

--- a/src/HOL/Equiv_Relations.thy	Sun Nov 02 18:21:14 2014 +0100
+++ b/src/HOL/Equiv_Relations.thy	Sun Nov 02 18:21:45 2014 +0100
@@ -2,7 +2,7 @@
     Copyright   1996  University of Cambridge
 *)
 
-header {* Equivalence Relations in Higher-Order Set Theory *}
+section {* Equivalence Relations in Higher-Order Set Theory *}
 
 theory Equiv_Relations
 imports Groups_Big Relation