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Are the following set of ordered pairs functions? If so, examine whether the mapping is injective or surjective.

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Are the following set of ordered pairs functions? If so, examine whether the mapping is injective or surjective.

(i) {(x, y): x is a person, y is the mother of x}.

(ii){(a, b): a is a person, b is an ancestor of a}.

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(i) We have,  {(x, y): x is a person, y is the mother of x}.

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