src/HOL/Library/Ramsey.thy

--- a/src/HOL/Library/Ramsey.thy	Sun Nov 02 17:16:01 2014 +0100
+++ b/src/HOL/Library/Ramsey.thy	Sun Nov 02 17:20:45 2014 +0100
@@ -2,7 +2,7 @@
     Author:     Tom Ridge.  Converted to structured Isar by L C Paulson
 *)
 
-header "Ramsey's Theorem"
+section "Ramsey's Theorem"
 
 theory Ramsey
 imports Main Infinite_Set