src/ZF/simpdata.ML
changeset 4091 771b1f6422a8
parent 3859 810fccb1ebe4
child 5137 60205b0de9b9
--- a/src/ZF/simpdata.ML	Mon Nov 03 12:22:43 1997 +0100
+++ b/src/ZF/simpdata.ML	Mon Nov 03 12:24:13 1997 +0100
@@ -104,6 +104,6 @@
 
 val ZF_atomize = atomize (ZF_conn_pairs, ZF_mem_pairs);
 
-simpset := !simpset setmksimps (map mk_meta_eq o ZF_atomize o gen_all);
+simpset_ref() := simpset() setmksimps (map mk_meta_eq o ZF_atomize o gen_all);
 
-val ZF_ss = !simpset;
+val ZF_ss = simpset();