diff -r 2205b572bc9b -r e25b0fff0dd2 Nominal/Ex/ExLetRec.thy
--- a/Nominal/Ex/ExLetRec.thy	Tue May 11 17:16:57 2010 +0200
+++ b/Nominal/Ex/ExLetRec.thy	Tue May 11 18:20:25 2010 +0200
@@ -32,8 +32,6 @@
 thm trm_lts.supp
 thm trm_lts.fv[simplified trm_lts.supp]
 
-declare permute_trm_raw_permute_lts_raw.simps[eqvt]
-
 equivariance alpha_trm_raw
 
 (* why is this not in HOL simpset? *)