proposition: Lemma isldistr_CFplus_CFmult : ∏ x y z : X, z * (x + y) = z * x + z * y.
proof: Proof. now apply ringdistraxs. Qed.
imports: UniMath.Algebra.DivisionRig UniMath.Algebra.Domains_and_Fields UniMath.Algebra.Apartness UniMath.MoreFoundations.Tactics