
diff -r 9537bf1c4853 -r 5b7a9633cfa8 src/HOL/Hahn_Banach/Vector_Space.thy
--- a/src/HOL/Hahn_Banach/Vector_Space.thy	Sun Nov 02 18:21:14 2014 +0100
+++ b/src/HOL/Hahn_Banach/Vector_Space.thy	Sun Nov 02 18:21:45 2014 +0100
@@ -2,7 +2,7 @@
     Author:     Gertrud Bauer, TU Munich
 *)
 
-header \<open>Vector spaces\<close>
+section \<open>Vector spaces\<close>
 
 theory Vector_Space
 imports Complex_Main Bounds




