with the second. Jus… Show more Determine whether the given map is an isomorphism of the first binary structure with the second. Justify your answer. (a) hZ; +i with hZ; +i where (n) = n for n 2 Z (b) hQ; i with hQ; i where (x) = x 2 for x 2 Q (c) hR; +i with hR +; i where (r) = (1/2)r for r 2 R • Show less