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R, = {(a, b) R2 | a > b}, the greater than relation, R2 = {(a, b) ER| a > b}, the greater than or

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R, = {(a, b) R2 | a > b}, the greater than relation, R2 = {(a, b) ER| a > b}, the greater than or equal to relation, Rz = {(a, b) ER? | a

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