∀ {C : Type u} [inst : CategoryTheory.Category.{v, u} C] {J : CategoryTheory.Limits.MultispanShape}
  {I : CategoryTheory.Limits.MultispanIndex J C} {c : CategoryTheory.Limits.Cofan I.left}
  (hc : CategoryTheory.Limits.IsColimit c) {d : CategoryTheory.Limits.Cofan I.right}
  (a : CategoryTheory.Limits.Cofork (I.fstSigmaMapOfIsColimit d hc) (I.sndSigmaMapOfIsColimit d hc)) (i : J.R),
  (CategoryTheory.Limits.Multicofork.ofSigmaCofork a).π i = CategoryTheory.CategoryStruct.comp (d.inj i) a.π