Lemma isassoc_join {X : hSet} (b : prebilattice X) : isassoc (join b) . Proof. exact (isassoc_Lmax (tlattice b)) . Defined.
Require Import UniMath.Algebra.BinaryOperations. Require Import UniMath.OrderTheory.Lattice.Lattice. Require Import UniMath.OrderTheory.Lattice.Bounded.