Proposition cha_to_le {H : complete_heyting_algebra} {x y : H} (p : (x ∧ y) = x) : x ≤ y. Proof. exact p. Qed.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.OrderTheory.Lattice.Lattice. Require Import UniMath.OrderTheory.Lattice.Bounded. Require Import UniMath.OrderTheory.Lattice.Heyting.