proposition: Lemma seriesK (V : zmodType) : cancel (@series V) telescope.
proof: Proof. move=> ?; exact/funext/seriesSB. Qed.
imports: mathcomp(all_ssreflect ssralg ssrint ssrnum matrix) mathcomp(interval rat) mathcomp(mathcomp_extra boolp classical_sets functions) mathcomp(set_interval) reals ereal signed topology normedtype landau