Let a = {1, 2, 3, 4}

Essay

Let A = {1, 2, 3, 4}. The following relation R is an equivalence relation on A:
R = {(1, 1), (1, 3), (1, 4), (2, 2), (3, 1), (3, 3), (3, 4), (4, 1), (4, 3), (4, 4)}.
(a) Draw the directed graph of R.
(b) Find the distinct equivalence classes of R.