OAI/Algebra/Finitistic/Ordinary/OrdinaryOffDiagonalMaps.lean
2 declarations, 0 contain sorry, 0 declared as axioms
- def
OAI.LittleFinitistic.OrdinarySimulation.OffDiagonal.mapline 14Source documentation
Actual component maps of the off-diagonal right product-ring module.
def map (f : O →ₗ[Lᵐᵒᵖ] O') (g : T →ₗ[Rᵐᵒᵖ] T') : OffDiagonal O T →ₗ[(L × R)ᵐᵒᵖ] OffDiagonal O' T' where …Mentions: OAI.LittleFinitistic.OrdinarySimulation.OffDiagonal
- theorem
OAI.LittleFinitistic.OrdinarySimulation.OffDiagonal.map_leftline 22Source documentation
The same map retains the two prescribed left product-ring actions.
theorem map_left (f : O →ₗ[Lᵐᵒᵖ] O') (hf : ∀ (r : R) x, f (r • x) = r • f x) (g : T →ₗ[Rᵐᵒᵖ] T') (hg : ∀ (s : L) x, g (s • x) = s • g x) (d : L × R) (x : OffDiagonal O T) : map f g (d • x) = d • map f g x := …Mentions: OAI.LittleFinitistic.OrdinarySimulation.OffDiagonal, OAI.LittleFinitistic.OrdinarySimulation.OffDiagonal.map