English
For a functor F : J ⥤ CommGrpCat, the limit cone is given by a chosen limit cone structure, possibly after an adjustment to Small objects.
Русский
Для F : J ⥤ CommGrpCat предел задаётся выбранной структурой предел-конуса; возможно, с небольшими преобразованиями.
LaTeX
$$$ \text{limitCone } F = \text{Cone}(F) \text{ (with chosen universal cone)}$$$
Lean4
/-- If `(F ⋙ forget CommGrpCat).sections` is `u`-small, `F` has a limit. -/
@[to_additive /-- If `(F ⋙ forget AddCommGrpCat).sections` is `u`-small, `F` has a limit. -/
]
instance hasLimit : HasLimit F :=
HasLimit.mk
{ cone := limitCone F
isLimit := limitConeIsLimit F }