Documentation

AInfinity.AInfinityCategory

structure AInfinityCategoryTheory.AInfinityPreCategory {β : Type v} [AInfinityTheory.Grading β] (R : Type u) [CommRing R] (Obj : Type w) extends AInfinityTheory.RLinearGQuiver R Obj :
Type (max (max (u + 1) v) w)
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    • n : ℕ+
    • obj : Fin (self.n + 1)Obj
    • deg : Fin self.nβ
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          def AInfinityCategoryTheory.AInfinityPreCategory.stasheffSum {β : Type v} [AInfinityTheory.Grading β] {R : Type u} [CommRing R] {Obj : Type w} (X : AInfinityPreCategory R Obj) {n : ℕ+} (obj : Fin (n + 1)Obj) (deg : Fin nβ) (x : (i : Fin n) → (AInfinityTheory.composableHomType AInfinityTheory.RLinearGQuiver.Hom obj deg i)) :

          The full Stasheff sum in arity n, with Koszul signs.

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            The Stasheff identities as a property of the raw A∞ category data.

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              structure AInfinityCategoryTheory.AInfinityCategory {β : Type v} [AInfinityTheory.Grading β] (R : Type u) [CommRing R] (Obj : Type w) extends AInfinityCategoryTheory.AInfinityPreCategory R Obj :
              Type (max (max (u + 1) v) w)
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                theorem AInfinityCategoryTheory.AInfinityCategory.stasheff_eq_zero {β : Type v} [AInfinityTheory.Grading β] {R : Type u} [CommRing R] {Obj : Type w} (X : AInfinityCategory R Obj) {n : ℕ+} (obj : Fin (n + 1)Obj) (deg : Fin nβ) (x : (i : Fin n) → (AInfinityTheory.composableHomType AInfinityTheory.RLinearGQuiver.Hom obj deg i)) :
                X.stasheffSum obj deg x = 0