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src/HOL/Nat_Transfer.thy
changeset 39302 d7728f65b353
parent 39198 f967a16dfcdd
child 42870 36abaf4cce1f 
--- a/src/HOL/Nat_Transfer.thy	Mon Sep 13 08:43:48 2010 +0200
+++ b/src/HOL/Nat_Transfer.thy	Mon Sep 13 11:13:15 2010 +0200
@@ -170,7 +170,7 @@
   apply (rule iffI)
   apply (erule finite_imageI)
   apply (erule finite_imageD)
-  apply (auto simp add: image_def set_ext_iff inj_on_def)
+  apply (auto simp add: image_def set_eq_iff inj_on_def)
   apply (drule_tac x = "int x" in spec, auto)
   apply (drule_tac x = "int x" in spec, auto)
   apply (drule_tac x = "int x" in spec, auto)
isabelle