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author | mohring <mohring@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2001-04-19 12:41:04 +0000 |
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committer | mohring <mohring@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2001-04-19 12:41:04 +0000 |
commit | 4a816963c315007576bfaba3e87df0c7091e1402 (patch) | |
tree | 9b32d023e23b3c9cfa2b11382c34796aa3630b87 /theories/Logic/Decidable.v | |
parent | bdbbb1bea47909ad5d0daffd77e090ef9b59d826 (diff) |
Mise de (*i autour CVS info
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@1620 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'theories/Logic/Decidable.v')
-rw-r--r-- | theories/Logic/Decidable.v | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/theories/Logic/Decidable.v b/theories/Logic/Decidable.v index 2de8a0961..ca4ba0e1a 100644 --- a/theories/Logic/Decidable.v +++ b/theories/Logic/Decidable.v @@ -1,3 +1,14 @@ +(***********************************************************************) +(* v * The Coq Proof Assistant / The Coq Development Team *) +(* <O___,, * INRIA-Rocquencourt & LRI-CNRS-Orsay *) +(* \VV/ *************************************************************) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(***********************************************************************) +(*i $Id$ i*) + +(* Properties of decidable propositions *) + Definition decidable := [P:Prop] P \/ ~P. Theorem dec_not_not : (P:Prop)(decidable P) -> (~P -> False) -> P. |