Direct Image of Intersection of Sets under an Injective Function Proof

Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys Direct Image of Intersection of Sets under an Injective Function Proof. Give an injective function f from X to Y and two subsets A, B of X, this video proves that the direct image of the intersection is the intersection of the direct images; i.e., f(A n B) = f(A) n f(B).