Let $B = \{ 0,1,2,3 \}$ And Define a Relation $U$ On $B$

Essay

Let $B = \{ 0,1,2,3 \}$ and define a relation $U$ on $B$ by
$$U = \{ ( 0,2 ) , ( 0,3 ) , ( 1,2 ) \} .$$
Is U transitive? Justify your answer.