diff options
Diffstat (limited to 'test-suite')
| -rw-r--r-- | test-suite/success/autorewrite.v | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/test-suite/success/autorewrite.v b/test-suite/success/autorewrite.v index 71d333d439..0ac62fcdc9 100644 --- a/test-suite/success/autorewrite.v +++ b/test-suite/success/autorewrite.v @@ -4,25 +4,35 @@ Axiom Ack0 : forall m : nat, Ack 0 m = S m. Axiom Ack1 : forall n : nat, Ack (S n) 0 = Ack n 1. Axiom Ack2 : forall n m : nat, Ack (S n) (S m) = Ack n (Ack (S n) m). -Hint Rewrite Ack0 Ack1 Ack2 : base0. +Module M. + #[export] Hint Rewrite Ack0 Ack1 Ack2 : base0. -Lemma ResAck0 : (Ack 2 2 = 7 -> False) -> False. + Lemma ResAck0 : (Ack 2 2 = 7 -> False) -> False. + Proof. + intros. + autorewrite with base0 in H using try (apply H; reflexivity). + Qed. +End M. + +Lemma ResAck1 : forall H:(Ack 2 2 = 7 -> False), True -> False. Proof. intros. - autorewrite with base0 in H using try (apply H; reflexivity). -Qed. + Fail autorewrite with base0 in *. +Abort. + +Import M. Lemma ResAck1 : forall H:(Ack 2 2 = 7 -> False), True -> False. Proof. intros. autorewrite with base0 in *. - apply H;reflexivity. + apply H;reflexivity. Qed. (* Check autorewrite does not solve existing evars *) (* See discussion started by A. Chargueraud in Oct 2010 on coqdev *) -Hint Rewrite <- plus_n_O : base1. +Global Hint Rewrite <- plus_n_O : base1. Goal forall y, exists x, y+x = y. eexists. autorewrite with base1. Fail reflexivity. |