proposition: Lemma fdist_convnE a : fdist_convn a = \sum_(i < n) e i * g i a.
proof: Proof. by rewrite /fdist_convn; unlock; rewrite ffunE. Qed.
imports: mathcomp(all_ssreflect ssralg fingroup perm matrix) mathcomp(all_algebra vector reals normedtype) mathcomp(mathcomp_extra boolp) mathcomp(Rstruct) ssrR logb realType_ext ssr_ext ssralg_ext bigop_ext