blob: 5addb4d244df2432c1baa0d7c0332b338808c595 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
|
(***********************************************************************)
(* 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*)
(* This file axiomatizes the relational form of the axiom of choice *)
Axiom relational_choice :
(A:Type;B:Type;R: A->B->Prop)
((x:A)(EX y:B|(R x y)))
-> (EXT R':A->B->Prop |
((x:A)(EX y:B|(R x y)/\(R' x y)/\ ((y':B) (R' x y') -> y=y')))).
|