(R : Type u_1) →
  [inst : CommRing R] →
    (U : (TopologicalSpace.Opens (PrimeSpectrum R))ᵒᵖ) →
      R →
        ↑((AlgebraicGeometry.Spec.structureSheaf R).obj.obj U) → ↑((AlgebraicGeometry.Spec.structureSheaf R).obj.obj U)