src/HOL/Library/AList_Mapping.thy

--- a/src/HOL/Library/AList_Mapping.thy	Sun Nov 02 17:16:01 2014 +0100
+++ b/src/HOL/Library/AList_Mapping.thy	Sun Nov 02 17:20:45 2014 +0100
@@ -2,7 +2,7 @@
    Author: Florian Haftmann, TU Muenchen
 *)
 
-header {* Implementation of mappings with Association Lists *}
+section {* Implementation of mappings with Association Lists *}
 
 theory AList_Mapping
 imports AList Mapping