Section Hom_Func_Twist.
Context (C : Category).

(** (Hom_Func Cᵒᵖ) = (Hom_Func C) ∘ (Twist_Func C Cᵒᵖ) Note that: (Home_Func C) : Cᵒᵖ×C -> Type_Cat and (Twist_Func C Cᵒᵖ) : C×Cᵒᴾ → Cᵒᵖ×C *)
Theorem Hom_Func_Twist : (Hom_Func (C^op)) = (Hom_Func C) ∘ (Twist_Func C (C^op)).