diff -r 9537bf1c4853 -r 5b7a9633cfa8 src/HOL/ex/Normalization_by_Evaluation.thy
--- a/src/HOL/ex/Normalization_by_Evaluation.thy	Sun Nov 02 18:21:14 2014 +0100
+++ b/src/HOL/ex/Normalization_by_Evaluation.thy	Sun Nov 02 18:21:45 2014 +0100
@@ -1,6 +1,6 @@
 (*  Authors:  Klaus Aehlig, Tobias Nipkow *)
 
-header {* Testing implementation of normalization by evaluation *}
+section {* Testing implementation of normalization by evaluation *}
 
 theory Normalization_by_Evaluation
 imports Complex_Main