File: bug_4205.v

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coq 8.20.1%2Bdfsg-1
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(* Testing a regression from 8.5beta1 to 8.5beta2 in evar-evar tactic unification problems *)


Inductive test : nat -> nat -> nat -> nat -> Prop :=
  | test1 : forall m n, test m n m n.

Goal test 1 2 3 4.
erewrite f_equal2 with (f := fun k l => test _ _ k l).
Abort.