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| author |  msozeau <msozeau@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2008-01-30 04:20:43 +0000 |
|---|---|---|
| committer | msozeau <msozeau@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2008-01-30 04:20:43 +0000 |
| commit | 90b063be6b3c23a54e1d59974e09ee14f2941338 (patch) | |
| tree | 65756ed843f1df72d9885d6450559aa120bc65b7 /theories/Classes/SetoidDec.v | |
| parent | bf4ea1d3edb56f9f63da38d08dd9fc14f5f9a4a3 (diff) | |
Support for occurences and 'in' in class_setoid, work on corresponding tactics in SetoidClass
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10486 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'theories/Classes/SetoidDec.v')
| -rw-r--r-- | theories/Classes/SetoidDec.v | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/theories/Classes/SetoidDec.v b/theories/Classes/SetoidDec.v index 3b4d90a5c..f68a7d3a4 100644 --- a/theories/Classes/SetoidDec.v +++ b/theories/Classes/SetoidDec.v @@ -22,6 +22,14 @@ Unset Strict Implicit. Require Export Coq.Classes.SetoidClass. +(** The [DecidableSetoid] class asserts decidability of a [Setoid]. It can be useful in proofs to reason more + classically. *) + +Require Import Coq.Logic.Decidable. + +Class [ Setoid A R ] => DecidableSetoid := + setoid_decidable : forall x y : A, decidable (x == y). + (** The [EqDec] class gives a decision procedure for a particular setoid equality. *) Class [ Setoid A R ] => EqDec := |