English
For a limit j with i<j, the map between Φ.Iteration i and Φ.Iteration j is given by a natural arrow constructed from the inductive system and the limit morphisms.
Русский
Для предельного j с i<j отображение между Φ.Iteration i и Φ.Iteration j задаётся естественно построенной стрелой из индуктивной системы и предельных морфизмов.
LaTeX
$$$\\mathrm{arrowMap}_{ind}(i,j) = \\mathrm{arrowι}(\\mathrm{InductiveSystem}, i,j)$$$
Lean4
/-- The extension of `inductiveSystem iter` to a functor `Set.Iic j ⥤ C` which
sends the top element to the colimit of `inductiveSystem iter`. -/
noncomputable def functor : Set.Iic j ⥤ C :=
letI := hasColimitsOfShape_of_isSuccLimit C j hj
ofCocone (colimit.cocone (inductiveSystem iter))