Library Coq.micromega.Fourier_util

Require Export Rbase.
Require Import Lra.

Open Scope R_scope.

Lemma Rlt_mult_inv_pos : forall x y:R, 0 < x -> 0 < y -> 0 < x * / y.

Lemma Rlt_zero_pos_plus1 : forall x:R, 0 < x -> 0 < 1 + x.

Lemma Rle_zero_pos_plus1 : forall x:R, 0 <= x -> 0 <= 1 + x.

Lemma Rle_mult_inv_pos : forall x y:R, 0 <= x -> 0 < y -> 0 <= x * / y.