src/HOL/HOL.ML
changeset 1672 2c109cd2fdd0
parent 1668 8ead1fe65aad
child 1725 8b7414384396
--- a/src/HOL/HOL.ML	Tue Apr 23 16:44:22 1996 +0200
+++ b/src/HOL/HOL.ML	Tue Apr 23 16:58:21 1996 +0200
@@ -305,7 +305,7 @@
 
 (** Standard abbreviations **)
 
-fun stac th = rtac(th RS ssubst);
+fun stac th = CHANGED o rtac (th RS ssubst);
 fun strip_tac i = REPEAT(resolve_tac [impI,allI] i); 
 
 (** strip proved goal while preserving !-bound var names **)