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src/HOL/Library/Library.thy
changeset 33356 9157d0f9f00e
parent 33177 edbd2c09176b
child 33649 854173fcd21c 
--- a/src/HOL/Library/Library.thy	Fri Oct 30 01:32:06 2009 +0100
+++ b/src/HOL/Library/Library.thy	Fri Oct 30 13:59:49 2009 +0100
@@ -11,7 +11,6 @@
   Code_Char_chr
   Code_Integer
   Coinductive_List
-  Commutative_Ring
   Continuity
   ContNotDenum
   Countable
isabelle