proposition: Lemma is_root_annul_creal (x : algcreal) (y : creal F) : (x == y)%CR -> ((annul_creal x).[y] == 0)%CR.
proof: Proof. by move <-. Qed.
imports: HB(structures) 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 generic_quotient) mathcomp(cauchyreals separable zmodp bigenough)