OAI/Topology/ArtinGroups/ParabolicIntersections/ReducedInputsMain.lean

GitHub source file

6 declarations, 0 contain sorry, 0 declared as axioms

Main results after discharging the acyclic-twist and folding inputs.

  1. def OAI.HarmonicArtin.ParabolicIntersections.PublishedMeshInput line 12

    Source documentation

    The remaining finite-type input is positive-degree mesh nilpotence.

    def PublishedMeshInput : Prop :=
    …
  2. theorem OAI.HarmonicArtin.ParabolicIntersections.PublishedMeshInput.withAlgebra line 17
  3. theorem OAI.HarmonicArtin.ParabolicIntersections.mesh_parabolic_intersections line 25

    Source documentation

    Theorem 1.1 with both the acyclic and folding inputs discharged.

    theorem mesh_parabolic_intersections
        (hEmb : ∀ X : Set S, VanDerLekRelativeEmbedding M X)
        (hMesh : ∀ X : Set S, PublishedMeshInput (relativeMatrix M X))
        (X Y : Set S) (g h : Artin M) :
        ∃ (Z : Set S) (k : Artin M),
          conjugate g (artinParabolic M X) ⊓ conjugate h (artinParabolic M Y) =
            conjugate k (artinParabolic M Z) :=
    …

    Mentions: OAI.HarmonicArtin.ParabolicIntersections.VanDerLekRelativeEmbedding, OAI.HarmonicArtin.ParabolicIntersections.PublishedMeshInput, OAI.HarmonicArtin.ParabolicIntersections.relativeMatrix, OAI.HarmonicArtin.Artin, OAI.HarmonicArtin.artinParabolic

  4. theorem OAI.HarmonicArtin.ParabolicIntersections.mesh_arbitrary_intersections line 36

    Source documentation

    Corollary 1.2: every intersection is parabolic and is already a finite intersection of at most the rank many members.

    theorem mesh_arbitrary_intersections
        (hEmb : ∀ X : Set S, VanDerLekRelativeEmbedding M X)
        (hMesh : ∀ X : Set S, PublishedMeshInput (relativeMatrix M X))
        (F : Set (Subgroup (Artin M))) (hF : ∀ P ∈ F, IsParabolic M P) :
        (∃ F₀ : Finset (Subgroup (Artin M)),
          (↑F₀ : Set (Subgroup (Artin M))) ⊆ F ∧ F₀.card ≤ Nat.card S ∧
            sInf F = sInf (↑F₀ : Set (Subgroup (Artin M)))) ∧ IsParabolic M (sInf F) :=
    …

    Mentions: OAI.HarmonicArtin.ParabolicIntersections.VanDerLekRelativeEmbedding, OAI.HarmonicArtin.ParabolicIntersections.PublishedMeshInput, OAI.HarmonicArtin.ParabolicIntersections.relativeMatrix, OAI.HarmonicArtin.Artin, OAI.HarmonicArtin.ParabolicIntersections.IsParabolic

  5. theorem OAI.HarmonicArtin.ParabolicIntersections.mesh_parabolic_closure line 46

    Source documentation

    Corollary 1.2: every subset has a unique smallest containing parabolic.

    theorem mesh_parabolic_closure
        (hEmb : ∀ X : Set S, VanDerLekRelativeEmbedding M X)
        (hMesh : ∀ X : Set S, PublishedMeshInput (relativeMatrix M X))
        (E : Set (Artin M)) :
        ∃! P : Subgroup (Artin M), IsParabolic M P ∧ E ⊆ P ∧
          ∀ Q : Subgroup (Artin M), IsParabolic M Q → E ⊆ Q → P ≤ Q :=
    …

    Mentions: OAI.HarmonicArtin.ParabolicIntersections.VanDerLekRelativeEmbedding, OAI.HarmonicArtin.ParabolicIntersections.PublishedMeshInput, OAI.HarmonicArtin.ParabolicIntersections.relativeMatrix, OAI.HarmonicArtin.Artin, OAI.HarmonicArtin.ParabolicIntersections.IsParabolic

  6. theorem OAI.HarmonicArtin.ParabolicIntersections.mesh_nonclique_dynamics line 55

    Source documentation

    Corollary 1.3 with both categorical inputs discharged.

    theorem mesh_nonclique_dynamics
        (hEmb : ∀ X : Set S, VanDerLekRelativeEmbedding M X)
        (hMesh : ∀ X : Set S, PublishedMeshInput (relativeMatrix M X))
        (hVisual : PublishedVisualSplitting M)
        (hIrred : IsIrreducible M) (hInf : ∃ s t : S, s ≠ t ∧ M s t=0) :
        AcylindricallyHyperbolic (Artin M) ∧
          ∀ P : Subgroup (Artin M), IsParabolic M P → P ≠ ⊤ → WeaklyMalnormal P :=
    …

    Mentions: OAI.HarmonicArtin.ParabolicIntersections.VanDerLekRelativeEmbedding, OAI.HarmonicArtin.ParabolicIntersections.PublishedMeshInput, OAI.HarmonicArtin.ParabolicIntersections.relativeMatrix, OAI.HarmonicArtin.ParabolicIntersections.PublishedVisualSplitting, OAI.HarmonicArtin.ParabolicIntersections.IsIrreducible, OAI.HarmonicArtin.ParabolicIntersections.AcylindricallyHyperbolic, OAI.HarmonicArtin.Artin, OAI.HarmonicArtin.ParabolicIntersections.IsParabolic, OAI.HarmonicArtin.ParabolicIntersections.WeaklyMalnormal