Question: Consider the set z = Z Z = { (x, v) : x E Z, y E Z} i.e., the set of all ordered

Consider the set z = Z Z = { (x, v) :

Consider the set z = Z Z = { (x, v) : x E Z, y E Z} i.e., the set of all ordered pairs of integers. Is the above set countably infinite? If yes, produce an enumeration of Z. If no, explain why not.

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