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src/HOL/Option.thy
changeset 32069 6d28bbd33e2c
parent 31998 2c7a24f74db9
child 34886 873c31d9f10d 
--- a/src/HOL/Option.thy	Tue Jul 14 16:27:31 2009 +0200
+++ b/src/HOL/Option.thy	Tue Jul 14 16:27:32 2009 +0200
@@ -105,7 +105,7 @@
   "is_none x \<longleftrightarrow> x = None"
   by (simp add: is_none_def)
 
-lemma [code_inline]:
+lemma [code_unfold]:
   "eq_class.eq x None \<longleftrightarrow> is_none x"
   by (simp add: eq is_none_none)
isabelle