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| author |  David Benjamin <davidben@google.com> | 2018-01-14 15:26:39 +0100 |
|---|---|---|
| committer |  Jason Gross <jasongross9@gmail.com> | 2018-01-14 17:28:31 +0100 |
| commit | e30d9e19b4b12ea9388b13d7c1ab2ffc5aba4917 (patch) | |
| tree | 34eceb08e8b7de59ec22270fd917052436360461 /src/Util/ZUtil | |
| parent | f7b212b9075dc3cf323eeb05ab99788eb9094807 (diff) | |
Add a comment for why Z.peano_rect_strong exists.
Diffstat (limited to 'src/Util/ZUtil')
| -rw-r--r-- | src/Util/ZUtil/Peano.v | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/Util/ZUtil/Peano.v b/src/Util/ZUtil/Peano.v index d0ba81ef4..fb534ba0b 100644 --- a/src/Util/ZUtil/Peano.v +++ b/src/Util/ZUtil/Peano.v @@ -34,6 +34,9 @@ Module Z. rewrite Pos.add_1_r; reflexivity. Qed. + (** [Z.peano_rect] does not provide the [0 <= z] and [z <= 0] hypotheses in + [Psucc] and [Ppred]. Define an alternate version for proofs which require + that. *) Section rect_strong. Context (P : Z -> Type) (P0 : P 0) |