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src/HOL/Nominal/Examples/Standardization.thy
changeset 59807 22bc39064290
parent 58889 5b7a9633cfa8
child 62390 842917225d56 
--- a/src/HOL/Nominal/Examples/Standardization.thy	Wed Mar 25 10:41:53 2015 +0100
+++ b/src/HOL/Nominal/Examples/Standardization.thy	Wed Mar 25 10:44:57 2015 +0100
@@ -384,7 +384,7 @@
     apply (subgoal_tac "r = (Lam [xa]. [(xa, x)] \<bullet> s)")
     prefer 2
     apply (simp add: calc_atm)
-    apply (thin_tac "r = ?t")
+    apply (thin_tac "r = _")
     apply simp
     apply (rule exI)
     apply (rule conjI)
isabelle