Question
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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Database Systems An Application Oriented Approach Complete Version
Authors: Michael Kifer, Arthur Bernstein, Richard Lewis
2nd Edition
0321268458, 978-0321268457
