Please I need help to solve these questions. Kindly help explain all steps involved. If possible, please type the answers. Thanks a lot.    (1) For each of the following, state a universe over which it is a tautology and another       universe over which it is a contradiction. (a) x is a positive number (b) “x is even” implies “x is a square” (c) “x is an ice cream flavor” or “x is odd”

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