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- Multiple ChoicePlease save your changes before editing any questions.
What does this symbol ( $\cup$ ) represent in set theory?

Union

Intersection

Disjointed

Subset

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What does this symbol ( $\cap$ ) represent in set theory?

Union

Intersection

Disjointed

Subset

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What does this symbol ( ∅ ) represent in set theory?

Universal Set

Empty (or Null) Set

Disjointed Set

Complement of a Set

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What does this symbol ( $\subseteq$ ) represent in set theory?

Union

Intersection

Disjointed

Subset

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What does this symbol ( $\in$ ) represent in set theory?

Subset

Empty Set

Every set

Element of

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What does this symbol ( $\notin$ ) represent in set theory?

Element of

Empty Set

Not an element of

Not a subset of

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What does this symbol ( $n\left(A\right)$ ) represent in set theory?

n of A

number of elements in set A

elements not in A

Complement of A

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What does this symbol ( $\not\subset$ ) represent in set theory?

Subset of

Empty Set

Not an element of

Not a subset of

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What does this symbol ( U ) represent in set theory?

Subset of

Empty Set

Elements of

Universal Set

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What does this symbol ( $A'$ ) represent in set theory?

n of A

number of elements in set A

element of A

Complement of A