Revision 7ae3d64f7211fdb2ca0cfa738fddad52399571fb authored by François Dupressoir on 26 June 2015, 09:46:35 UTC, committed by Pierre-Yves Strub on 26 June 2015, 14:11:43 UTC
Some remain in newth/NewIntCore.ec and newth/NewRealCore.ec. smt full and smt all currently fail for different reasons.
1 parent 966282e
NewMonoid.eca
(* --------------------------------------------------------------------
* Copyright (c) - 2012-2015 - IMDEA Software Institute and INRIA
* Distributed under the terms of the CeCILL-C license
* -------------------------------------------------------------------- *)
require import Fun Int IntExtra.
(* -------------------------------------------------------------------- *)
type t.
op idm : t.
op (+) : t -> t -> t.
theory Axioms.
axiom nosmt addmA: associative Self.(+).
axiom nosmt addmC: commutative Self.(+).
axiom nosmt add0m: left_id idm Self.(+).
end Axioms.
(* -------------------------------------------------------------------- *)
lemma addmA: associative Self.(+).
proof. by apply/Axioms.addmA. qed.
lemma addmC: commutative Self.(+).
proof. by apply/Axioms.addmC. qed.
lemma add0m: left_id idm Self.(+).
proof. by apply/Axioms.add0m. qed.
lemma addm0: right_id idm Self.(+).
proof. by move=> x; rewrite addmC add0m. qed.
lemma addmCA: left_commutative Self.(+).
proof. by move=> x y z; rewrite !addmA (addmC x). qed.
lemma addmAC: right_commutative Self.(+).
proof. by move=> x y z; rewrite -!addmA (addmC y). qed.
lemma addmACA: interchange Self.(+) Self.(+).
proof. by move=> x y z t; rewrite -!addmA (addmCA y). qed.
lemma iteropE n x: iterop n Self.(+) x idm = iter n ((+) x) idm.
proof.
elim/Induction.natcase n => [n le0_n|n ge0_n].
+ by rewrite ?(iter0, iterop0).
+ by rewrite iterSr // addm0 iteropS.
qed.
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