fact: Definition Lam_coiterator_4_2_2_naturality_left: forall (Lambda:T_over_B_distributive) X (hsbx:T_star_ (T_ (B_ X))), lift_B_ _ _ (Chi X) (lambda_star Lambda (T_ X) (lift_T_star_ _ _ (Lambda.(lambda_) X) hsbx)) = lambda_star Lambda X (Chi (B_ X) hsbx).
imports: WeaklyFinalCoalgebra