∀ {A : Type u_1} {σ : Type u_2} [inst : CommRing A] [inst_1 : SetLike σ A] [inst_2 : AddSubmonoidClass σ A] (𝒜 : ℕ → σ)
  [inst_3 : GradedRing 𝒜],
  GaloisConnection (fun s => ProjectiveSpectrum.zeroLocus 𝒜 s) fun t => ↑(ProjectiveSpectrum.vanishingIdeal t)