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A predicate wff is in prenex normal form if all the quanti ers appear at the front of the wff. Write each of the following

A predicate wff is in prenex normal form if all the quanti ers appear at the front of the wff. Write each of the following expressions as an equivalent wff in prenex normal form.

a. (x)P(x) /\ (y)Q( y) b. (x)(P(x) -> (y)[Q( y) -> W(x, y)])

c. (x)P(x) /\ (x)Q(x)

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