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src/HOL/Auth/Message.thy
changeset 59755 f8d164ab0dc1
parent 59498 50b60f501b05
child 59763 56d2c357e6b5 
--- a/src/HOL/Auth/Message.thy	Thu Mar 19 17:25:57 2015 +0100
+++ b/src/HOL/Auth/Message.thy	Thu Mar 19 22:30:57 2015 +0100
@@ -866,7 +866,7 @@
      (EVERY 
       [  (*push in occurrences of X...*)
        (REPEAT o CHANGED)
-           (res_inst_tac ctxt [(("x", 1), "X")] (insert_commute RS ssubst) 1),
+           (res_inst_tac ctxt [((("x", 1), Position.none), "X")] (insert_commute RS ssubst) 1),
        (*...allowing further simplifications*)
        simp_tac ctxt 1,
        REPEAT (FIRSTGOAL (resolve_tac ctxt [allI,impI,notI,conjI,iffI])),
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