Lemma isaprop_interlacing {X : hSet} (op : binop X) (R : hrel X) : isaprop (interlacing op R). Proof. do 4 (use impred; intro). use propproperty. Defined.
Require Import UniMath.OrderTheory.Prebilattice.Prebilattice. Require Import UniMath.OrderTheory.Lattice.Lattice. Require Import UniMath.Foundations.Sets. Require Import UniMath.MoreFoundations.Subtypes. Require Import UniMath.Algebra.BinaryOperations.