proposition: Lemma cvgZl s k a : s @ F --> k -> s x *: a @[x --> F] --> k *: a.
proof: Proof. by move=> ?; apply: cvgZ => //; exact: cvg_cst. Qed.
imports: HB(structures) mathcomp(all_ssreflect ssralg ssrint ssrnum finmap matrix) mathcomp(rat interval zmodp vector fieldext falgebra) mathcomp(mathcomp_extra boolp classical_sets functions) mathcomp(cardinality set_interval Rstruct) ereal reals signed topology prodnormedzmodule