d = (a, b, c).
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- [Type here] 7. Let be the set of all ordered pairs of integers and . Equality, addition, and multiplication are defined as follows: if and only if and in , Given that is a ring, determine whether is commutative and whether has a unity. Justify your decisions. [Type here]19. If and are integers with and . Prove that .True or false Label each of the following statement as either true or false. Let and be integers, then .
