proposition: Lemma pi_mul : {morph \pi_{alg F} : x y / mul_algcreal x y >-> mul_alg x y}.
proof: Proof. by unlock mul_alg=> x y; rewrite -equiv_alg /= !pi_algK. 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)