proposition: Lemma size_pet_alg_poly s : size (pet_alg_poly s) = size s.
proof: Proof. by unlock pet_alg_poly; case: pet_alg_proof. 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)