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| author |  Stephane Glondu <steph@glondu.net> | 2012-08-20 18:27:01 +0200 |
|---|---|---|
| committer | Stephane Glondu <steph@glondu.net> | 2012-08-20 18:27:01 +0200 |
| commit | e0d682ec25282a348d35c5b169abafec48555690 (patch) | |
| tree | 1a46f0142a85df553388c932110793881f3af52f /theories/Numbers/Integer/NatPairs/ZNatPairs.v | |
| parent | 86535d84cc3cffeee1dcd8545343f234e7285530 (diff) | |
Imported Upstream version 8.4dfsgupstream/8.4dfsg
Diffstat (limited to 'theories/Numbers/Integer/NatPairs/ZNatPairs.v')
| -rw-r--r-- | theories/Numbers/Integer/NatPairs/ZNatPairs.v | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/theories/Numbers/Integer/NatPairs/ZNatPairs.v b/theories/Numbers/Integer/NatPairs/ZNatPairs.v index dbcc1961..b5e1fa5b 100644 --- a/theories/Numbers/Integer/NatPairs/ZNatPairs.v +++ b/theories/Numbers/Integer/NatPairs/ZNatPairs.v @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2010 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2012 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) @@ -59,7 +59,7 @@ Definition le (n m : t) := n#1 + m#2 <= m#1 + n#2. Definition min (n m : t) : t := (min (n#1 + m#2) (m#1 + n#2), n#2 + m#2). Definition max (n m : t) : t := (max (n#1 + m#2) (m#1 + n#2), n#2 + m#2). -(** NB : We do not have [Zpred (Zsucc n) = n] but only [Zpred (Zsucc n) == n]. +(** NB : We do not have [Z.pred (Z.succ n) = n] but only [Z.pred (Z.succ n) == n]. It could be possible to consider as canonical only pairs where one of the elements is 0, and make all operations convert canonical values into other canonical values. In that case, we |