diff -r 774d631726ad -r 84a13d1e2511 Nominal-General/Nominal2_Eqvt.thy
--- a/Nominal-General/Nominal2_Eqvt.thy	Tue Apr 27 19:51:35 2010 +0200
+++ b/Nominal-General/Nominal2_Eqvt.thy	Tue Apr 27 22:21:16 2010 +0200
@@ -251,7 +251,7 @@
   imp_eqvt [folded induct_implies_def]
 
   (* nominal *)
-  supp_eqvt fresh_eqvt add_perm_eqvt
+  supp_eqvt fresh_eqvt add_perm_eqvt atom_eqvt
 
   (* datatypes *)
   permute_prod.simps append_eqvt rev_eqvt set_eqvt