src/HOL/Transitive_Closure.thy
changeset 58889 5b7a9633cfa8
parent 57284 886ff14f20cc
child 60681 9ce7463350a9
--- a/src/HOL/Transitive_Closure.thy	Sun Nov 02 18:21:14 2014 +0100
+++ b/src/HOL/Transitive_Closure.thy	Sun Nov 02 18:21:45 2014 +0100
@@ -3,7 +3,7 @@
     Copyright   1992  University of Cambridge
 *)
 
-header {* Reflexive and Transitive closure of a relation *}
+section {* Reflexive and Transitive closure of a relation *}
 
 theory Transitive_Closure
 imports Relation