Answer to Question #336499 in Discrete Mathematics for harshal

Question #336499

Let R1 = {(1, 2), (2, 3), (3, 4)} and R2 = {(1, 1), (1, 2), (2, 1), (2, 2), (2, 3), (3, 1), (3, 2), (3, 3), (3, 4)} be relations from {1, 2, 3} to {1, 2, 3, 4}. Find R1 − R2

Expert's answer

Since "R_1\\subset R_2," we conclude that "R_1-R_2=\\emptyset."

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