Question: Skolemization / FOL to CNF P. Q. R are predicates; x, y, z, w, v are variables; a and b are constants; and s is

Skolemization / FOL to CNF

P. Q. R are predicates; x, y, z, w, v are variables;

P. Q. R are predicates; x, y, z, w, v are variables; a and b are constants; and s is a unary funetion symbol. For each item below, write the result obtained by Skolemization and removing the universal quantifiers. (a) SxSy(Q(x) v Q(y) (b) $x"y$zP(x, y, z) (c) SxR(x) Sx-R(x) (d) $xP(a, x) (e) SxQ(x) Picture in case the above does not render correctly: (a) 3x3y(Q(x) v Qy)) (b) 3xVy3zP(x, y, z) (c) ExR(x) v 3x R(x) (d) 3xP(a, x) (e) Ex0x)

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