diff options
Diffstat (limited to 'test-suite/bugs/closed/shouldsucceed/1614.v')
-rw-r--r-- | test-suite/bugs/closed/shouldsucceed/1614.v | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/test-suite/bugs/closed/shouldsucceed/1614.v b/test-suite/bugs/closed/shouldsucceed/1614.v deleted file mode 100644 index 6bc165d4..00000000 --- a/test-suite/bugs/closed/shouldsucceed/1614.v +++ /dev/null @@ -1,21 +0,0 @@ -Require Import Ring. -Require Import ArithRing. - -Fixpoint eq_nat_bool (x y : nat) {struct x} : bool := -match x, y with -| 0, 0 => true -| S x', S y' => eq_nat_bool x' y' -| _, _ => false -end. - -Theorem eq_nat_bool_implies_eq : forall x y, eq_nat_bool x y = true -> x = y. -Proof. -induction x; destruct y; simpl; intro H; try (reflexivity || inversion H). -apply IHx in H; rewrite H; reflexivity. -Qed. - -Add Ring MyNatSRing : natSRth (decidable eq_nat_bool_implies_eq). - -Goal 0 = 0. - ring. -Qed. |