Definition cha_basis_data (H : complete_heyting_algebra) : UU := ∑ (B : UU), (B → H) × (B → B → hProp).
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.