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| author | Jason Gross | 2017-04-25 13:50:54 -0400 |
|---|---|---|
| committer | GitHub | 2017-04-25 13:50:54 -0400 |
| commit | 16b8ed513cb4a0e68456fc968a9a0107d02acf5a (patch) | |
| tree | ecb407893dca7a34142677dd3cd7bc41336288d7 | |
| parent | adc2035410a339cfa88dae527b631f5131adaa54 (diff) | |
Give andb_prop a simpler proof
No need to use `discriminate`. This is the hopefully uncontroversial part of https://github.com/coq/coq/pull/401.
| -rw-r--r-- | theories/Init/Datatypes.v | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/theories/Init/Datatypes.v b/theories/Init/Datatypes.v index 11d80dbc33..41e1fea61d 100644 --- a/theories/Init/Datatypes.v +++ b/theories/Init/Datatypes.v @@ -65,7 +65,7 @@ Infix "&&" := andb : bool_scope. Lemma andb_prop : forall a b:bool, andb a b = true -> a = true /\ b = true. Proof. - destruct a; destruct b; intros; split; try (reflexivity || discriminate). + destruct a, b; repeat split; assumption. Qed. Hint Resolve andb_prop: bool. |