diff options
| author |  Joachim Breitner <mail@joachim-breitner.de> | 2018-01-17 08:01:18 -0500 |
|---|---|---|
| committer | Joachim Breitner <mail@joachim-breitner.de> | 2018-02-14 21:24:43 -0500 |
| commit | f87b9c9564b21b2f531629311787f329c5851af7 (patch) | |
| tree | 4c1e1727fa5ae9b1c34320eafc8ab7d0ca35fba3 /test-suite/bugs/opened | |
| parent | 41893cb647fbdce87b40acd5763e837370d61ece (diff) | |
Extend `zify_N` with knowledge about `N.pred`
by doing the same thing as `zify_nat` does for `nat.pred`.
This fixes #6602.
Diffstat (limited to 'test-suite/bugs/opened')
| -rw-r--r-- | test-suite/bugs/opened/6602.v | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test-suite/bugs/opened/6602.v b/test-suite/bugs/opened/6602.v new file mode 100644 index 000000000..3690adf90 --- /dev/null +++ b/test-suite/bugs/opened/6602.v @@ -0,0 +1,17 @@ +Require Import Omega. + +Lemma test_nat: + forall n, (5 + pred n <= 5 + n). +Proof. + intros. + zify. + omega. +Qed. + +Lemma test_N: + forall n, (5 + N.pred n <= 5 + n)%N. +Proof. + intros. + zify. + omega. +Qed. |