src/HOL/Nominal/Nominal.thy
changeset 24568 9a4cce088aec
parent 24544 da7de38392df
child 24571 a6d0428dea8e
--- a/src/HOL/Nominal/Nominal.thy	Tue Sep 11 14:26:49 2007 +0200
+++ b/src/HOL/Nominal/Nominal.thy	Thu Sep 13 18:06:50 2007 +0200
@@ -3233,6 +3233,7 @@
   (* connectives *)
   if_eqvt imp_eqvt disj_eqvt conj_eqvt neg_eqvt 
   true_eqvt false_eqvt
+  imp_eqvt [folded induct_implies_def]
   
   (* datatypes *)
   perm_unit.simps