src/HOL/ex/Unification.thy
changeset 58889 5b7a9633cfa8
parent 58310 91ea607a34d8
child 61343 5b5656a63bd6
--- a/src/HOL/ex/Unification.thy	Sun Nov 02 18:21:14 2014 +0100
+++ b/src/HOL/ex/Unification.thy	Sun Nov 02 18:21:45 2014 +0100
@@ -4,7 +4,7 @@
     Author:     Alexander Krauss, TUM
 *)
 
-header {* Substitution and Unification *}
+section {* Substitution and Unification *}
 
 theory Unification
 imports Main