OAI/CategoryTheory/Thomason/Transfer/TripleGlobeCylinderPushout.lean

GitHub source file

15 declarations, 0 contain sorry, 0 declared as axioms

Simultaneous horn attachments

Realization transports the coproduct deformation through its canonical coproduct comparison isomorphisms. Arbitrary simultaneous horn attachments therefore satisfy the actual realization weak-equivalence test.

  1. def OAI.Thomason.Construction.realizedCoproductData line 26

    Source documentation

    Actual realization of a coproduct inherits the componentwise deformations.

    def realizedCoproductData {α : Type} {A B : α → SSet.{0}} (f : ∀ a, A a ⟶ B a)
        (d : ∀ a, TopologicalDeformation.Data (SSet.toTop.map (f a))) :
        TopologicalDeformation.Data (SSet.toTop.map (CategoryTheory.Limits.Sigma.map f)) :=
    …

    Mentions: OAI.Thomason.Construction.TopologicalDeformation.Data

  2. def OAI.Thomason.Construction.simultaneousHornData line 44

    Source documentation

    A coproduct of generating horns has a stationary realized deformation.

    def simultaneousHornData {α : Type} (n : α → ℕ) (i : ∀ a, Fin (n a+2)) :
        TopologicalDeformation.Data (SSet.toTop.map
          (CategoryTheory.Limits.Sigma.map (fun a =>
            (Λ[n a+1, i a].ι : _ ⟶ (Δ[n a+1] : SSet.{0}))))) :=
    …

    Mentions: OAI.Thomason.Construction.TopologicalDeformation.Data

  3. theorem OAI.Thomason.Construction.simultaneous_horn_attachment_weak line 51

    Source documentation

    Attaching any family of horns at once is an actual realization weak equivalence.

    theorem simultaneous_horn_attachment_weak {α : Type} (n : α → ℕ) (i : ∀ a, Fin (n a+2))
        {X P : SSet.{0}}
        {f : (∐ fun a => (Λ[n a+1, i a] : SSet.{0})) ⟶ X}
        {b : (∐ fun a => (Δ[n a+1] : SSet.{0})) ⟶ P} {j : X ⟶ P}
        (h : IsPushout (CategoryTheory.Limits.Sigma.map
          (fun a => (Λ[n a+1, i a].ι : _ ⟶ (Δ[n a+1] : SSet.{0})))) f b j) :
        realizationWeakEquivalences j :=
    …

    Mentions: OAI.Thomason.Construction.realizationWeakEquivalences

  4. theorem OAI.Thomason.Construction.StrictOmegaCategory.TripleGlobeCylinder.generated_image line 76
  5. theorem OAI.Thomason.Construction.StrictOmegaCategory.TripleGlobeCylinder.pair_basisComparison line 89
  6. theorem OAI.Thomason.Construction.StrictOmegaCategory.TripleGlobeCylinder.last_basisComparison line 95
  7. theorem OAI.Thomason.Construction.StrictOmegaCategory.TripleGlobeCylinder.pair_atom_eq_lift line 101
  8. theorem OAI.Thomason.Construction.StrictOmegaCategory.TripleGlobeCylinder.last_atom_eq_lift line 116
  9. theorem OAI.Thomason.Construction.StrictOmegaCategory.TripleGlobeCylinder.pair_generated line 132
  10. theorem OAI.Thomason.Construction.StrictOmegaCategory.TripleGlobeCylinder.last_generated line 157
  11. theorem OAI.Thomason.Construction.StrictOmegaCategory.TripleGlobeCylinder.generated line 180
  12. def OAI.Thomason.Construction.StrictOmegaCategory.TripleGlobeCylinder.basisIso line 189
  13. def OAI.Thomason.Construction.StrictOmegaCategory.TripleGlobeCylinder.modelIso line 194
  14. theorem OAI.Thomason.Construction.StrictOmegaCategory.TripleGlobeCylinder.modelIso_hom line 198
  15. theorem OAI.Thomason.Construction.StrictOmegaCategory.TripleGlobeCylinder.isPushout line 203