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| author |  Jason Gross <jagro@google.com> | 2018-08-24 21:35:12 -0400 |
|---|---|---|
| committer | Jason Gross <jagro@google.com> | 2018-08-24 21:35:12 -0400 |
| commit | d2712446da700450239dd5556431b0d40a446dde (patch) | |
| tree | b763f4ca6675e59a58975ac8643b05a8dd2b2e9b /src | |
| parent | 87ed4dfaee47cd0fe79083844380886618effd09 (diff) | |
Add ZRange.union_comm
Diffstat (limited to 'src')
| -rw-r--r-- | src/Util/ZRange/BasicLemmas.v | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/Util/ZRange/BasicLemmas.v b/src/Util/ZRange/BasicLemmas.v index 1245bfe3f..d48c89011 100644 --- a/src/Util/ZRange/BasicLemmas.v +++ b/src/Util/ZRange/BasicLemmas.v @@ -43,6 +43,9 @@ Module ZRange. Definition normalize_or v : normalize v = v \/ normalize v = flip v. Proof. t. Qed. + Lemma union_comm r1 r2 : union r1 r2 = union r2 r1. + Proof. t. Qed. + Local Ltac t2_step := first [ t_step | rewrite !Bool.andb_true_iff |