English
For CostructuredArrow G X, under suitable hypotheses, a colimit exists for any diagram F: J ⥤ CostructuredArrow G X.
Русский
Для CostructuredArrow G X при заданных условиях существует колимит для любой диаграммы F: J ⥤ CostructuredArrow G X.
LaTeX
$$$\\operatorname{HasColimit}(F)$$$
Lean4
instance hasColimit [i₁ : HasColimit (F ⋙ proj G X)] [i₂ : PreservesColimit (F ⋙ proj G X) G] : HasColimit F :=
by
haveI : HasColimit (F ⋙ Comma.fst G (Functor.fromPUnit X)) := i₁
haveI : PreservesColimit (F ⋙ Comma.fst G (Functor.fromPUnit X)) _ := i₂
apply Comma.hasColimit