proposition: Lemma lt_crealW (x y : creal) : (x < y)%CR -> (x <= y)%CR.
proof: Proof. by move=> /lt_creal_trans /(_ _) /le_creal_refl. Qed.
imports: mathcomp.ssreflect.ssreflect mathcomp(ssrfun ssrbool eqtype ssrnat seq choice fintype) mathcomp(bigop order ssralg ssrnum ssrint rat poly polydiv polyorder) mathcomp(perm matrix mxpoly polyXY binomial bigenough)