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Diffstat (limited to 'test-suite/bugs/opened/4717.v')
| -rw-r--r-- | test-suite/bugs/opened/4717.v | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/test-suite/bugs/opened/4717.v b/test-suite/bugs/opened/4717.v deleted file mode 100644 index 9ad47467..00000000 --- a/test-suite/bugs/opened/4717.v +++ /dev/null @@ -1,19 +0,0 @@ -(*See below. They sometimes work, and sometimes do not. Is this a bug?*) - -Require Import Omega Psatz. - -Definition foo := nat. - -Goal forall (n : foo), 0 = n - n. -Proof. intros. omega. (* works *) Qed. - -Goal forall (x n : foo), x = x + n - n. -Proof. - intros. - Fail omega. (* Omega can't solve this system *) - Fail lia. (* Cannot find witness. *) - unfold foo in *. - omega. (* works *) -Qed. - -(* Guillaume Melquiond: What matters is the equality. In the first case, it is @eq nat. In the second case, it is @eq foo. The same issue exists for ring and field. So it is not a bug, but it is worth fixing.*) |