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a) Let R be the relation on the set A = {1, 2, 3, 4} defined by aRb if and only if 2a >

 

a) Let R be the relation on the set A = {1, 2, 3, 4} defined by aRb if and only if 2a > b + 1. Find the matrix representing R R. b) Suppose that the relation R is defined on the set Z where aRb means a = +b. Show that R is an equivalence relation.

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