src/HOL/Set.thy
changeset 33039 5018f6a76b3f
parent 33022 c95102496490
parent 33038 8f9594c31de4
child 33045 2b3694001c48
--- a/src/HOL/Set.thy	Wed Oct 21 16:41:22 2009 +1100
+++ b/src/HOL/Set.thy	Wed Oct 21 08:16:25 2009 +0200
@@ -303,7 +303,7 @@
       fun check (Const ("Ex", _) $ Abs (_, _, P), n) = check (P, n + 1)
         | check (Const ("op &", _) $ (Const ("op =", _) $ Bound m $ e) $ P, n) =
             n > 0 andalso m = n andalso not (loose_bvar1 (P, n)) andalso
-            ((0 upto (n - 1)) subset add_loose_bnos (e, 0, []))
+            subset (op =) (0 upto (n - 1), add_loose_bnos (e, 0, []))
         | check _ = false
 
         fun tr' (_ $ abs) =