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src/FOLP/simp.ML
changeset 7645 c67115c0e105
parent 6969 441393b452c7
child 13105 3d1e7a199bdc 
--- a/src/FOLP/simp.ML	Wed Sep 29 14:34:01 1999 +0200
+++ b/src/FOLP/simp.ML	Wed Sep 29 14:35:18 1999 +0200
@@ -600,7 +600,7 @@
 
 fun mk_typed_congs thy =
 let val sg = sign_of thy;
-    val S0 = Type.defaultS(#tsig(Sign.rep_sg sg))
+    val S0 = Sign.defaultS sg;
     fun readfT(f,s) =
         let val T = incr_tvar 9 (Sign.read_typ(sg,K(Some(S0))) s);
             val t = case Sign.const_type sg f of
isabelle