proposition: Lemma mulrn_arithmetic (R : zmodType) : @GRing.natmul R = arithmetic 0.
proof: Proof. by rewrite funeq2E => z n /=; rewrite add0r. 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