OAI/Algebra/Finitistic/Localization/BoundedRepresentatives.lean
5 declarations, 0 contain sorry, 0 declared as axioms
- def
OAI.LittleFinitistic.BoundedHomotopy.representativeline 10Source documentation
An actual bounded representative of each homotopy-category object.
def representative (X : K C) : Complex C := …
Mentions: OAI.LittleFinitistic.BoundedHomotopy.K, OAI.LittleFinitistic.BoundedHomotopy.Complex
- theorem
OAI.LittleFinitistic.BoundedHomotopy.quotient_representativeline 13 - def
OAI.LittleFinitistic.BoundedHomotopy.representativeMapline 20Source documentation
A bounded chain-map representative of a homotopy-category morphism.
def representativeMap {X Y : K C} (f : X ⟶ Y) : representative C X ⟶ representative C Y := …Mentions: OAI.LittleFinitistic.BoundedHomotopy.K, OAI.LittleFinitistic.BoundedHomotopy.representative
- theorem
OAI.LittleFinitistic.BoundedHomotopy.quotient_representativeMapline 24 - def
OAI.LittleFinitistic.BoundedHomotopy.nullHomotopyline 29Source documentation
Zero in K means a genuine right-linear null-homotopy of the chain representative.
def nullHomotopy {X Y : Complex C} (f : X ⟶ Y) (hf : (quotient C).map f = 0) : Homotopy f.hom 0 := …Mentions: OAI.LittleFinitistic.BoundedHomotopy.Complex, OAI.LittleFinitistic.BoundedHomotopy.quotient