let I and Y be separable Banach space that means it has a countable subset which is dense in y sa Defi Bounded linear operator let I and Y be a normed space and T: D(T) - Y a linear operator, where D (T) CI. The operator T is said to be bounded if there is a real number c such that for all X D(T) 1) Twill < cl|xl| Ex: let I and Y be separable Banach space. Prove that for any separable Banach Space Y there is a bounded linear operator Til Y Y T Such that I is anto