Let X = {1, 2, 3} and Y = {4, 5}. Find whether the following subsets of X × Y are functions from X to Y or not. f = {(1, 4), (1, 5), (2, 4), (3, 5)}
Let X = {1, 2, 3} and Y = {4, 5}. Find whether the following subsets of X × Y are functions from X to Y or not.
f = {(1, 4), (1, 5), (2, 4), (3, 5)}