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src/HOL/Tools/SMT2/smt2_normalize.ML
changeset 56105 75dc126f5dcb
parent 56104 fd6e132ee4fb
child 56106 9cfea3ab002a 
--- a/src/HOL/Tools/SMT2/smt2_normalize.ML	Thu Mar 13 14:48:20 2014 +0100
+++ b/src/HOL/Tools/SMT2/smt2_normalize.ML	Thu Mar 13 14:48:20 2014 +0100
@@ -497,7 +497,7 @@
   let
     val (is, thms) = split_list ithms
     val (thms', extra_thms) = f thms
-  in (is ~~ thms') @ tag_list (length is) extra_thms end
+  in (is ~~ thms') @ tag_list (fold Integer.max is 0 + 1) extra_thms end
 
 fun unfold2 ctxt ithms =
   ithms
isabelle