English
There is a natural isomorphism between the diagram for P⁺ and the diagram for P⁺ under F, compatible with colimits and limits for the multicospan shapes.
Русский
Существует естественный изоморфизм между диаграммой P⁺ и диаграммой P⁺ под F, согласованный с колимитами и лимитами для форм многокрабленных пар.
LaTeX
$$$J.diagramCompIso F P X$ provides an isomorphism between the relevant diagrams.$$
Lean4
/-- The isomorphism between `P⁺ ⋙ F` and `(P ⋙ F)⁺`, functorially in `P`. -/
@[simps! hom_app inv_app]
def plusFunctorWhiskerRightIso :
J.plusFunctor D ⋙ (whiskeringRight _ _ _).obj F ≅ (whiskeringRight _ _ _).obj F ⋙ J.plusFunctor E :=
NatIso.ofComponents (fun _ => J.plusCompIso _ _) @fun _ _ _ => plusCompIso_whiskerRight _ _ _