∀ {α : Type u_2} {β : Type u_3} {γ : Type u_4} [inst : TopologicalSpace α] [inst_1 : Preorder α]
  [inst_2 : TopologicalSpace β] [inst_3 : Preorder β] [inst_4 : TopologicalSpace γ] [inst_5 : Preorder γ] (f : β →Co γ)
  (g : α →Co β), ⇑(f.comp g) = ⇑f ∘ ⇑g