Let A = {1, 2, 3}, B = {4, 5, 6, 7} and let f = {(1, 4), (2, 5), (3, 6)} be a function from A to B. Show that f is on

Solution:

A = {1, 2, 3}

B = {4, 5, 6, 7} and

f = {(1, 4), (2, 5), (3, 6)}

f(1) = 4, f(2) = 5 and f(3) = 6

Here, additionally particular components of A have unmistakable pictures in B. In this manner, f is one-one.