The answers to exercises marked IBB] can be found in the Back of the Book.Explain why each...

The answers to exercises marked IBB] can be found in the Back of the Book.

Explain why each of the following binary relations on S = {1, 2, 3} is not an equivalence relation on S.

(a) [BB] = |(1, 1), (1,2), (3, 2), (3, 3), (2, 3). (2, 1)}

(b) = {(1, 1), (2, 2), (3, 3), (2, 1), (I, 2), (2, 3), (3, 1), (1.3)1

(c)