English
The composition of two bounded lattice homomorphisms is again a bounded lattice homomorphism.
Русский
Сжатие двух гомоморфизмов ограниченной решетки образует новый гомоморфизм.
LaTeX
$$$\\forall f:\\mathrm{BoundedLatticeHom}(\\beta,\\gamma),\\ \\forall g:\\mathrm{BoundedLatticeHom}(\\alpha,\\beta),\\ f\\circ g \\in \\mathrm{BoundedLatticeHom}(\\alpha,\\gamma)$$$
Lean4
/-- Composition of `BoundedLatticeHom`s as a `BoundedLatticeHom`. -/
def comp (f : BoundedLatticeHom β γ) (g : BoundedLatticeHom α β) : BoundedLatticeHom α γ :=
{ f.toLatticeHom.comp g.toLatticeHom, f.toBoundedOrderHom.comp g.toBoundedOrderHom with }