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(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(* * (see LICENSE file for the text of the license) *)
(************************************************************************)
(* (c) Copyright 2006-2016 Microsoft Corporation and Inria. *)
Require Import ssreflect.
Require Import ssrbool TestSuite.ssr_mini_mathcomp.
Variable T : Type.
Lemma test0 : forall a b c d : T, True.
Proof. by move=> a b {a} a c; exact I. Qed.
Variable P : T -> Prop.
Lemma test1 : forall a b c : T, P a -> forall d : T, True.
Proof. move=> a b {a} a _ d; exact I. Qed.
Definition Q := forall x y : nat, x = y.
Axiom L : 0 = 0 -> Q.
Axiom L' : 0 = 0 -> forall x y : nat, x = y.
Lemma test3 : Q.
by apply/L.
Undo.
rewrite /Q.
by apply/L.
Undo 2.
by apply/L'.
Qed.
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