proposition: Lemma mcoeff_outdom (g : {malg G[K]}) (k : K) : k \notin msupp g -> g@_k = 0.
proof: Proof. exact: fsfun_dflt. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat) mathcomp(seq path choice finset fintype finfun) mathcomp(tuple bigop ssralg ssrint ssrnum) xfinmap