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No, only if both sets are empty. The intersection of disjoint sets is always empty.

Q: Is the union of disjoint sets is always the empty set?

This answer is:

Related answers

No, only if both sets are empty. The intersection of disjoint sets is always empty.

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A Forest is a disjoint union of trees

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Disjoint means they have no elements in common. The union is the set of elements containing all elements from both sets. Since there is no overlap, the union will have 5+7 elements.

Therefore the answer is 12.

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Yes,Because not all disjoint no equivalent other have disjoint and equivalent

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Not necessarily. For a counterexample, A and C could be the same set.

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