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Nominal-General/Nominal2_Supp.thy
changeset 1861 226b797868dc
parent 1778 88ec05a09772
child 1879 869d1183e082 
--- a/Nominal-General/Nominal2_Supp.thy	Thu Apr 15 21:56:03 2010 +0200
+++ b/Nominal-General/Nominal2_Supp.thy	Fri Apr 16 10:18:16 2010 +0200
@@ -68,7 +68,7 @@
   unfolding fresh_star_def
   by (metis mem_permute_iff permute_minus_cancel fresh_permute_iff)
 
-lemma fresh_star_eqvt:
+lemma fresh_star_eqvt[eqvt]:
   shows "(p \<bullet> (as \<sharp>* x)) = (p \<bullet> as) \<sharp>* (p \<bullet> x)"
 unfolding fresh_star_def
 unfolding Ball_def
nominal2