OAI/Algebra/Finitistic/Rectification/InducedRectification.lean

GitHub source file

6 declarations, 0 contain sorry, 0 declared as axioms

  1. def OAI.LittleFinitistic.InducedRectification.total line 20

    Source documentation

    The actual three-column induced bimodule complex of Section 4.

    def total : BiComplex k B :=
    …
  2. def OAI.LittleFinitistic.InducedRectification.rightTotal line 25

    Source documentation

    Its right-module restriction, retaining the original bimodule construction.

    def rightTotal : RightComplex B :=
    …
  3. theorem OAI.LittleFinitistic.InducedRectification.total_bounded line 28
  4. theorem OAI.LittleFinitistic.InducedRectification.rightTotal_projective line 39

    Source documentation

    Termwise projectivity holds for the actual right restriction of the total.

    theorem rightTotal_projective
        (h₀ : ∀ n, Module.Projective Bᵐᵒᵖ (D₀.X n))
        (h₁ : ∀ n, Module.Projective Bᵐᵒᵖ (D₁.X n))
        (h₂ : ∀ n, Module.Projective Bᵐᵒᵖ (D₂.X n)) :
        ∀ n, Projective ((rightTotal s D₀ D₁ D₂ f g H).X n) := by
    …

    Mentions: OAI.LittleFinitistic.InducedRectification.rightTotal

  5. def OAI.LittleFinitistic.InducedRectification.inclusion line 49

    Source documentation

    The entire zero column has its original chain inclusion.

    def inclusion : L0Prime s D₀ D₁ D₂ f g ⟶ total s D₀ D₁ D₂ f g H :=
    …

    Mentions: OAI.LittleFinitistic.InducedRectification.total

  6. def OAI.LittleFinitistic.InducedRectification.boundaryHomotopy line 53

    Source documentation

    The prescribed first boundary becomes null-homotopic in the actual total.

    def boundaryHomotopy : Homotopy
        (p s D₀ D₁ D₂ f g ≫ inclusion s D₀ D₁ D₂ f g H) 0 :=
    …

    Mentions: OAI.LittleFinitistic.InducedRectification.inclusion