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Datei:
Zmax.v
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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) *)
(************************************************************************)
(** THIS FILE IS DEPRECATED. *)
Require Export BinInt Zcompare Zorder.
Local Open Scope Z_scope.
(** Definition [Z.max] is now [BinInt.Z.max]. *)
(** Exact compatibility *)
Notation Zmax_right := Z.max_r (only parsing).
Notation Zle_max_compat_r := Z.max_le_compat_r (only parsing).
Notation Zle_max_compat_l := Z.max_le_compat_l (only parsing).
Notation Zmax_idempotent := Z.max_id (only parsing).
Notation Zmax_n_n := Z.max_id (only parsing).
Notation Zmax_irreducible_dec := Z.max_dec (only parsing).
Notation Zmax_le_prime := Z.max_le (only parsing).
Notation Zmax_SS := Z.succ_max_distr (only parsing).
Notation Zplus_max_distr_l := Z.add_max_distr_l (only parsing).
Notation Zplus_max_distr_r := Z.add_max_distr_r (only parsing).
Notation Zmax_plus := Z.add_max_distr_r (only parsing).
Notation Zmax1 := Z.le_max_l (only parsing).
Notation Zmax2 := Z.le_max_r (only parsing).
Notation Zmax_irreducible_inf := Z.max_dec (only parsing).
Notation Zmax_le_prime_inf := Z.max_le (only parsing).
Notation Zpos_max := Pos2Z.inj_max (only parsing).
Notation Zpos_minus := Pos2Z.inj_sub_max (only parsing).
(** Slightly different lemmas *)
Lemma Zmax_spec x y :
x >= y /\ Z.max x y = x \/ x < y /\ Z.max x y = y.
Proof.
Z.swap_greater. destruct (Z.max_spec x y); auto.
Qed.
Lemma Zmax_left n m : n>=m -> Z.max n m = n.
Proof. Z.swap_greater. apply Z.max_l. Qed.
Lemma Zpos_max_1 p : Z.max 1 (Z.pos p) = Z.pos p.
Proof.
now destruct p.
Qed.
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