proposition: Lemma div_pi x y : \pi_{alg F} x / \pi_{alg F} y = \pi_{alg F} (mul_algcreal x (inv_algcreal y)).
proof: Proof. by rewrite [_ / _]piE. 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)