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(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(* * (see LICENSE file for the text of the license) *)
(************************************************************************)
(* *)
(* Micromega: A reflexive tactic using the Positivstellensatz *)
(* *)
(* Frédéric Besson (Irisa/Inria) 2016 *)
(* *)
(************************************************************************)
Require Import QMicromega.
Require Import QArith.
Require Import RingMicromega.
Require Import VarMap.
Require Coq.micromega.Tauto.
Declare ML Module "micromega_plugin".
Ltac rchange :=
intros __wit __varmap __ff ;
change (Tauto.eval_f (Qeval_formula (@find Q 0%Q __varmap)) __ff) ;
apply (QTautoChecker_sound __ff __wit).
Ltac rchecker_no_abstract := rchange ; vm_compute ; reflexivity.
Ltac rchecker_abstract := rchange ; vm_cast_no_check (eq_refl true).
Ltac rchecker := rchecker_no_abstract.
(** Here, lra stands for linear rational arithmetic *)
Ltac lra := lra_Q rchecker.
(** Here, nra stands for non-linear rational arithmetic *)
Ltac nra := xnqa rchecker.
Ltac xpsatz dom d :=
let tac := lazymatch dom with
| Q =>
((sos_Q rchecker) || (psatz_Q d rchecker))
| _ => fail "Unsupported domain"
end in tac.
Tactic Notation "psatz" constr(dom) int_or_var(n) := xpsatz dom n.
Tactic Notation "psatz" constr(dom) := xpsatz dom ltac:(-1).
(* Local Variables: *)
(* coding: utf-8 *)
(* End: *)
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