proposition: Lemma memN_msupp_eq0 p m : m \notin msupp p -> p@_m = 0.
proof: Proof. by rewrite !msuppE /mcoeff => /coeff_outdom. 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