proposition: Lemma islabsorb_CFzero_CFmult : ∏ x : X, 0 * x = 0.
proof: Proof. now apply ringmult0x. Qed.
imports: UniMath.Algebra.DivisionRig UniMath.Algebra.Domains_and_Fields UniMath.Algebra.Apartness UniMath.MoreFoundations.Tactics