diff -r dcde128c84a2 -r dca691610489 src/HOL/Library/Binomial.thy
--- a/src/HOL/Library/Binomial.thy	Sat Nov 10 18:36:06 2007 +0100
+++ b/src/HOL/Library/Binomial.thy	Sat Nov 10 18:36:06 2007 +0100
@@ -82,7 +82,7 @@
   done
 
 
-subsubsection {* Theorems about @{text "choose"} *}
+subsection {* Theorems about @{text "choose"} *}
 
 text {*
   \medskip Basic theorem about @{text "choose"}.  By Florian