--- a/Nominal/Ex/ExPS7.thy	Sat Sep 18 06:09:43 2010 +0800
+++ b/Nominal/Ex/ExPS7.thy	Mon Sep 20 21:52:45 2010 +0800
@@ -6,6 +6,8 @@
 
 atom_decl name
 
+declare [[STEPS = 31]]
+
 nominal_datatype exp =
   Var name
 | Unit