In this group of problems, you are given the predicate P(x), where the domain of x is the set of natural numbers. Question 10 (see above) A = (Vn e N.P(n) B = (P(0) ^ (Vn E N.P(n+ 1) → P(n))) A. O A entails B B. O B entails A C. O A and B are equivalent. D. O A A B is a contradiction (ie, A and B can't be true at the same time). E. O None of the above.

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