Question: Let A = {1, 2, 3,4} and let R, S,T and U be the following relations: R= {(1,3), (3, 2), (2,1),(4,4)}, S = {(2, 1),

Let A = {1, 2, 3,4} and let R, S,T and U be the following relations: R= {(1,3), (3, 2), (2,1),(4,4)}, S = {(2, 1), (3, 3),(4, 2)}, T = {(4,1),(4,2), (3, 1), (3, 2), (1, 2)}, U = {(x, y) | X > y}. For each of R, S, T and U determine whether the relation is anti-symmetric. Please give a detailed answer. Thanks

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