∀ (n : Type v) (S : AlgebraicGeometry.Scheme),
  AlgebraicGeometry.AffineSpace n S ↘ S =
    CategoryTheory.Limits.pullback.fst (CategoryTheory.Limits.terminal.from S)
      (CategoryTheory.Limits.terminal.from
        (AlgebraicGeometry.Spec
          { carrier := MvPolynomial n (ULift.{max u v, 0} ℤ), commRing := MvPolynomial.instCommRingMvPolynomial }))