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(*         *      The Rocq Prover / The Rocq Development Team           *)
(*  v      *         Copyright INRIA, CNRS and contributors             *)
(* <O___,, * (see version control and CREDITS file for authors & dates) *)
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(*    //   *    This file is distributed under the terms of the         *)
(*         *     GNU Lesser General Public License Version 2.1          *)
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(** This module states propositional extensionality and draws consequences of it *)

(* Specifications: *)
Axiom propositional_extensionality :
forall (P Q : Prop), (P <-> Q) -> P = Q.
Theorem proof_irrelevance : forall (P:Prop) (p1 p2:P), p1 = p2.