Module

RelEffCartierDiv_exists_supportedIn_universal_of_smooth_opens.lean

Nyll.AlgebraicCurves.RelativeDivisors.RelEffCartierDiv_exists_supportedIn_universal_of_smooth_opens
1 declaration indexed from sourceView source ↗

Rel Eff Cartier Div exists supported In universal of smooth opens

Declarations

AlgebraicGeometry.RelEffCartierDiv.exists_supportedIn_universal_of_smooth_opens
Source context 7 commands

Surrounding namespaces, section variables, and local commands at this declaration.

section ProofImplementation
namespace AlgebraicCurves.RelativeDivisors.Proofs
namespace RelEffCartierDiv_exists_supportedIn_universal_of_smooth_opens
attribute [-instance]
  AlgebraicGeometry.RelEffCartierDiv.subsingleton_of_degree_zero
  AlgebraicGeometry.RelEffCartierDiv.isIso_subschemeIota_snd_of_degree_one
  AlgebraicGeometry.isIso_ker_graphOver_subschemeIota_snd
  AlgebraicGeometry.isClosedImmersion_graphOver
  instNeg
  instSMulInt
  instAddCommGroup
  instAdd
  instSub
  instModuleCarrierObjOppositeOpensCarrierCarrierCommRingCatPresheafOpOpensTop
  instSMulCarrierObjOppositeOpensCarrierCarrierCommRingCatPresheafOpOpensTop
  instSMulNat
  instZero
attribute [-simp] AlgebraicGeometry.prodKerGraph_one AlgebraicGeometry.fibrePowOver.proj_comp
  AlgebraicGeometry.prodKerGraph_zero AlgebraicGeometry.RelEffCartierDiv.empty_I
  AlgebraicGeometry.fibrePowOver.proj_comp_assoc AlgebraicGeometry.graphOver_fst_assoc
  AlgebraicGeometry.RelEffCartierDiv.toPoint_comp
  AlgebraicGeometry.RelEffCartierDiv.toPoint_comp_assoc AlgebraicGeometry.graphOver_fst
  AlgebraicGeometry.RelEffCartierDiv.ofPoint_I AlgebraicGeometry.graphOver_snd
  AlgebraicGeometry.graphOver_snd_assoc AlgebraicCurve.SymmetricPowerPackage.mk.sizeOf_spec
  AlgebraicCurve.SymmetricPowerPackage.mk.injEq
  AlgebraicGeometry.Scheme.IdealSheafData.IdealHom.sub_app
  AlgebraicGeometry.Scheme.IdealSheafData.sres_sresTop
  AlgebraicGeometry.Scheme.IdealSheafData.IdealHom.add_app
  AlgebraicGeometry.Scheme.IdealSheafData.IdealHom.mk.sizeOf_spec
  AlgebraicGeometry.Scheme.IdealSheafData.coe_resLE
  AlgebraicGeometry.Scheme.IdealSheafData.IdealHom.smul_app
  AlgebraicGeometry.Scheme.IdealSheafData.IdealHom.coe_ofLE_app
  AlgebraicGeometry.Scheme.IdealSheafData.IdealHom.ideal_range
  AlgebraicGeometry.Scheme.IdealSheafData.IdealHom.zero_app
  AlgebraicGeometry.Scheme.IdealSheafData.sres_sres
  AlgebraicGeometry.Scheme.IdealSheafData.IdealHom.comp_app
  AlgebraicGeometry.Scheme.IdealSheafData.IdealHom.neg_app
  AlgebraicGeometry.Scheme.IdealSheafData.IdealHom.id_app
  AlgebraicGeometry.Scheme.IdealSheafData.IdealHom.coe_mulRight_app
  AlgebraicGeometry.Scheme.IdealSheafData.IdealHom.nsmul_app
  AlgebraicGeometry.Scheme.IdealSheafData.IdealHom.mk.injEq
  AlgebraicGeometry.Scheme.IdealSheafData.IdealHom.zsmul_app
universe u
open CategoryTheory CategoryTheory.Limits AlgebraicGeometry AlgebraicGeometry.RelEffCartierDiv
theorem _root_.AlgebraicGeometry.RelEffCartierDiv.exists_supportedIn_universal_of_smooth_opens
    {𝒞 S : Scheme.{u}} (f : 𝒞 ⟶ S) [IsSeparated f] (U : 𝒞.Opens)
    [SmoothOfRelativeDimension 1 (U.ι ≫ f)]
    (hcov : ∀ (V : S.affineOpens) (F : Finset ↥U), (∀ x ∈ F, (U.ι ≫ f) x ∈ (V : S.Opens)) →
      ∃ W : (↑U : Scheme.{u}).Opens, IsAffineOpen W ∧ W ≤ (U.ι ≫ f) ⁻¹ᵁ (V : S.Opens) ∧ ∀ x ∈ F, x
        ∈ W)
    (r : ℕ) :
    ∃ (Y : Scheme.{u}) (y : Y ⟶ S) (Duniv : RelEffCartierDiv f r y), Duniv.SupportedIn U ∧
      ∀ ⦃T : Scheme.{u}⦄ (g : T ⟶ S) (D : RelEffCartierDiv f r g), D.SupportedIn U →
        ∃! φ : {φ : T ⟶ Y // φ ≫ y = g}, PullsBackOver Duniv φ.1 φ.2 D