English
If G reflects isomorphisms and has/ preserves colimits of shape J, then G reflects colimits of shape J.
Русский
Если G отражает изоморфизмы и имеет/сохраняет колимиты формы J, тогда G отражает колимиты формы J.
LaTeX
$$$\\bigl[G \\text{ reflectsIsomorphisms} \\land HasColimitsOfShape J C \\land PreservesColimitsOfShape J G\\bigr] \\Rightarrow ReflectsColimitsOfShape J G$$$
Lean4
/-- If `C` has colimits and `G` preserves colimits, then if `G` reflects isomorphisms then it reflects
colimits.
-/
theorem reflectsColimits_of_reflectsIsomorphisms {G : C ⥤ D} [G.ReflectsIsomorphisms] [HasColimitsOfSize.{w', w} C]
[PreservesColimitsOfSize.{w', w} G] : ReflectsColimitsOfSize.{w', w} G where
reflectsColimitsOfShape := reflectsColimitsOfShape_of_reflectsIsomorphisms