∀ {α : Type u_2} {β : Type u_3} {γ : Type u_4} [inst : TopologicalSpace α] [inst_1 : TopologicalSpace β]
  [inst_2 : TopologicalSpace γ] (f : SpectralMap β γ) (g : SpectralMap α β), ⇑(f.comp g) = ⇑f ∘ ⇑g