Question: Restate the following Prolog rule in predicate calculus, using appropriate quantifiers: sibling(X, Y) :- mother(M, X), mother(M, Y), father(F, X), father(F, Y).

Restate the following Prolog rule in predicate calculus, using appropriate quantifiers:

sibling(X, Y) :- mother(M, X), mother(M, Y),
                        father(F, X), father(F, Y).

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