proposition: Lemma mulr_is_linear x : linear (@GRing.mul R x : R -> R).
proof: Proof. by move=> ???; rewrite mulrDr scalerAr. Qed.
imports: HB(structures) mathcomp(all_ssreflect ssralg ssrnum matrix interval) mathcomp(mathcomp_extra boolp classical_sets functions) reals signed topology prodnormedzmodule normedtype landau forms