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(*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
(* <O___,, *   INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2014     *)
(*   \VV/  **************************************************************)
(*    //   *      This file is distributed under the terms of the       *)
(*         *       GNU Lesser General Public License Version 2.1        *)
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(*                                                                        *)
(* Omega: a solver of quantifier-free problems in Presburger Arithmetic   *)
(*                                                                        *)
(* Pierre Crégut (CNET, Lannion, France)                                  *)
(*                                                                        *)
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(* We do not require [ZArith] anymore, but only what's necessary for Omega *)
Require Export ZArith_base.
Require Export OmegaLemmas.
Require Export PreOmega.
Declare ML Module "omega_plugin".

Hint Resolve Z.le_refl Z.add_comm Z.add_assoc Z.mul_comm Z.mul_assoc Z.add_0_l
  Z.add_0_r Z.mul_1_l Z.add_opp_diag_l Z.add_opp_diag_r Z.mul_add_distr_r
  Z.mul_add_distr_l: zarith.

Require Export Zhints.

(*
(* The constant minus is required in coq_omega.ml *)
Require Minus.
*)

Hint Extern 10 (_ = _ :>nat) => abstract omega: zarith.
Hint Extern 10 (_ <= _) => abstract omega: zarith.
Hint Extern 10 (_ < _) => abstract omega: zarith.
Hint Extern 10 (_ >= _) => abstract omega: zarith.
Hint Extern 10 (_ > _) => abstract omega: zarith.

Hint Extern 10 (_ <> _ :>nat) => abstract omega: zarith.
Hint Extern 10 (~ _ <= _) => abstract omega: zarith.
Hint Extern 10 (~ _ < _) => abstract omega: zarith.
Hint Extern 10 (~ _ >= _) => abstract omega: zarith.
Hint Extern 10 (~ _ > _) => abstract omega: zarith.

Hint Extern 10 (_ = _ :>Z) => abstract omega: zarith.
Hint Extern 10 (_ <= _)%Z => abstract omega: zarith.
Hint Extern 10 (_ < _)%Z => abstract omega: zarith.
Hint Extern 10 (_ >= _)%Z => abstract omega: zarith.
Hint Extern 10 (_ > _)%Z => abstract omega: zarith.

Hint Extern 10 (_ <> _ :>Z) => abstract omega: zarith.
Hint Extern 10 (~ (_ <= _)%Z) => abstract omega: zarith.
Hint Extern 10 (~ (_ < _)%Z) => abstract omega: zarith.
Hint Extern 10 (~ (_ >= _)%Z) => abstract omega: zarith.
Hint Extern 10 (~ (_ > _)%Z) => abstract omega: zarith.

Hint Extern 10 False => abstract omega: zarith.