diff -r 7eb95f86f87f -r d24f59f78a86 Nominal/Fv.thy
--- a/Nominal/Fv.thy	Sat Mar 27 09:15:09 2010 +0100
+++ b/Nominal/Fv.thy	Sat Mar 27 09:21:43 2010 +0100
@@ -896,7 +896,7 @@
   simp_tac (HOL_basic_ss addsimps @{thms supp_abs_sum}) THEN_ALL_NEW
   simp_tac (HOL_basic_ss addsimps @{thms supp_def}) THEN_ALL_NEW
   simp_tac (HOL_basic_ss addsimps (@{thm permute_Abs} :: perm)) THEN_ALL_NEW
-  simp_tac (HOL_basic_ss addsimps (@{thm Abs_eq_iff} :: eqiff)) THEN_ALL_NEW
+  simp_tac (HOL_basic_ss addsimps (@{thms Abs_eq_iff} @ eqiff)) THEN_ALL_NEW
   simp_tac (HOL_basic_ss addsimps @{thms alphas2}) THEN_ALL_NEW
   simp_tac (HOL_basic_ss addsimps @{thms alphas}) THEN_ALL_NEW
   asm_full_simp_tac (HOL_basic_ss addsimps (@{thm supp_Pair} :: sym_eqvts ctxt)) THEN_ALL_NEW