File: bug_2616.v

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coq 8.20.1%2Bdfsg-1
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(* Testing ill-typed rewrite which used to succeed in 8.3 *)
Goal
  forall (N : nat -> Prop) (g : nat -> sig N) (IN : forall a : sig N, a = g 0),
    N 0 -> False.
Proof.
intros.
Fail rewrite IN in H.
Abort.