diff options
| author |  letouzey <letouzey@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2010-07-10 14:31:47 +0000 |
|---|---|---|
| committer | letouzey <letouzey@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2010-07-10 14:31:47 +0000 |
| commit | ea83ab467124ccdbe2d98434f409a1061b689267 (patch) | |
| tree | 900d2d2288f5c17184ef80dfb240e841a24dece0 /theories/Structures | |
| parent | 25533df336888df4255e3882e21d5d5420e5de28 (diff) | |
Bool: iff lemmas about or, a reflect inductive, an is_true function
For the moment, almost no lemmas about (reflect P b), just the proofs
that it is equivalent with an P<->b=true.
is_true b is (b=true), and is meant to be added as a coercion
if one wants it. In the StdLib, this coercion is not globally
activated, but particular files are free to use Local Coercion...
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13275 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'theories/Structures')
| -rw-r--r-- | theories/Structures/Orders.v | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/theories/Structures/Orders.v b/theories/Structures/Orders.v index d7bdfbf71..f83e77ed8 100644 --- a/theories/Structures/Orders.v +++ b/theories/Structures/Orders.v @@ -162,9 +162,9 @@ Module OTF_to_TotalOrder (O:OrderedTypeFull) <: TotalOrder *) (** For stating properties like transitivity of [leb], - we coerce [bool] into [Prop]. - NB: To migrate in Init/Datatype later *) -Local Coercion is_true b := b = true. (*: bool >-> Sortclass.*) + we coerce [bool] into [Prop]. *) + +Local Coercion is_true : bool >-> Sortclass. Hint Unfold is_true. Module Type HasLeBool (Import T:Typ). |