File: bug_8553.v

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coq 8.20.1%2Bdfsg-1
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(* Using tactic "change" under binders *)

Definition add2 n := n +2.
Goal (fun n => n) = (fun n => n+2).
change (?n + 2) with (add2 n).
match goal with |- _ = (fun n => add2 n) => idtac end. (* To test the presence of add2 *)
Abort.