(************************************************************************)
(* Copyright 2006 Milad Niqui                                           *)
(* This file is distributed under the terms of the                      *)
(* GNU Lesser General Public License Version 2.1                        *)
(* A copy of the license can be found at                                *)
(*                  <http://www.gnu.org/licenses/lgpl-2.1.html>         *)
(************************************************************************)
(* This file contains various properties of R that are not in the standard library. *)

Lemma Rlt_stepl:forall x y z, Rlt x y -> x=z -> Rlt z y.