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src/HOL/Induct/QuoNestedDataType.thy
changeset 49834 b27bbb021df1
parent 45694 4a8743618257
child 55417 01fbfb60c33e 
--- a/src/HOL/Induct/QuoNestedDataType.thy	Fri Oct 12 15:08:29 2012 +0200
+++ b/src/HOL/Induct/QuoNestedDataType.thy	Fri Oct 12 18:58:20 2012 +0200
@@ -144,7 +144,7 @@
 
 definition "Exp = UNIV//exprel"
 
-typedef (open) exp = Exp
+typedef exp = Exp
   morphisms Rep_Exp Abs_Exp
   unfolding Exp_def by (auto simp add: quotient_def)
isabelle