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src/HOL/Library/Permutations.thy
changeset 33059 d1c9bf0f8ae8
parent 33057 764547b68538
child 33715 8cce3a34c122 
--- a/src/HOL/Library/Permutations.thy	Thu Oct 22 09:49:48 2009 +0200
+++ b/src/HOL/Library/Permutations.thy	Thu Oct 22 09:50:29 2009 +0200
@@ -83,7 +83,7 @@
   unfolding permutes_def by simp
 
 lemma permutes_inv_eq: "p permutes S ==> inv p y = x \<longleftrightarrow> p x = y"
-  unfolding permutes_def inv_onto_def apply auto
+  unfolding permutes_def inv_def apply auto
   apply (erule allE[where x=y])
   apply (erule allE[where x=y])
   apply (rule someI_ex) apply blast
isabelle