--- a/Nominal/Ex/ExLetRec.thy	Tue May 11 14:58:46 2010 +0100
+++ b/Nominal/Ex/ExLetRec.thy	Tue May 11 17:16:57 2010 +0200
@@ -33,7 +33,6 @@
 thm trm_lts.fv[simplified trm_lts.supp]
 
 declare permute_trm_raw_permute_lts_raw.simps[eqvt]
-declare alpha_gen_eqvt[eqvt]
 
 equivariance alpha_trm_raw