∀ {C : Type u₁} [inst : CategoryTheory.Category.{v₁, u₁} C] [inst_1 : CategoryTheory.CartesianMonoidalCategory C]
  {X : C} (Z : CategoryTheory.Over X) (A : C) (f : Z ⟶ (CategoryTheory.toOver X).obj A),
  ((CategoryTheory.forgetAdjToOver X).homEquiv Z A).symm f =
    CategoryTheory.CategoryStruct.comp f.left (CategoryTheory.SemiCartesianMonoidalCategory.fst A X)