src/HOL/Tools/res_clause.ML
changeset 20854 f9cf9e62d11c
parent 20824 aca7d38283bf
child 21254 d53f76357f41
--- a/src/HOL/Tools/res_clause.ML	Wed Oct 04 14:14:33 2006 +0200
+++ b/src/HOL/Tools/res_clause.ML	Wed Oct 04 14:17:38 2006 +0200
@@ -452,7 +452,7 @@
 
 fun get_tvar_strs [] = []
   | get_tvar_strs ((FOLTVar indx,s)::tss) = 
-      (make_schematic_type_var indx) ins (get_tvar_strs tss)
+      insert (op =) (make_schematic_type_var indx) (get_tvar_strs tss)
   | get_tvar_strs((FOLTFree x,s)::tss) = get_tvar_strs tss
 
 (* check if a clause is first-order before making a conjecture clause*)