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src/Provers/Arith/cancel_numeral_factor.ML
changeset 60754 02924903a6fd
parent 59530 2a20354c0877
child 61144 5e94dfead1c2 
--- a/src/Provers/Arith/cancel_numeral_factor.ML	Sat Jul 18 20:53:05 2015 +0200
+++ b/src/Provers/Arith/cancel_numeral_factor.ML	Sat Jul 18 20:54:56 2015 +0200
@@ -72,7 +72,7 @@
   in
     Option.map (export o Data.simplify_meta_eq ctxt)
       (Data.prove_conv
-         [Data.trans_tac ctxt reshape, rtac Data.cancel 1,
+         [Data.trans_tac ctxt reshape, resolve_tac ctxt [Data.cancel] 1,
           Data.numeral_simp_tac ctxt] ctxt prems (t', rhs))
   end
   (* FIXME avoid handling of generic exceptions *)
isabelle