proposition: Lemma comp_mpolyE p lq : p \mPo lq = \sum_(m <- msupp p) p@_m *: \prod_(i < n) (tnth lq i)^+(m i).
proof: Proof. by apply/eq_bigr=> m _; rewrite -mul_mpolyC. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq path) mathcomp(choice fintype tuple finfun bigop finset binomial) mathcomp(order fingroup perm ssralg zmodp poly ssrint) mathcomp(matrix vector) mathcomp(bigenough) ssrcomplements freeg