--- a/src/HOL/ex/ExecutableContent.thy Fri Jan 26 10:48:09 2007 +0100
+++ b/src/HOL/ex/ExecutableContent.thy Fri Jan 26 13:59:02 2007 +0100
@@ -15,7 +15,7 @@
List_Prefix
Nat_Infinity
NatPair
- (*Nested_Environment*)
+ Nested_Environment
Permutation
Primes
Product_ord