proposition: Lemma isreflabgrdiffrelint (X : abmonoid) {L : hrel X} (is : isbinophrel L) (isl : isrefl L) : isrefl (abgrdiffrelint X L).
proof: Proof. intro xa. unfold abgrdiffrelint. simpl. apply hinhpr. split with (unel X). apply (isl _). Defined.
imports: UniMath.MoreFoundations.Orders UniMath.MoreFoundations.Tactics UniMath.MoreFoundations.Subtypes UniMath.Algebra.BinaryOperations UniMath.Algebra.Monoids