proposition: Lemma le_creal_refl (x : creal) : (x <= x)%CR.
proof: Proof. by apply: (@le_crealP 0%N). 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)