What is null set or empty set?
What is a null set or empty set?
- A.
A set with infinite elements
- B.
A set with one element
- C.
A set with zero elements
- D.
A set with all the possible elements
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Correct answer: C
Definition: A null set or empty set is a set that contains no elements.
Notation: ∅ or {}.
Example: The set of natural numbers less than 0 is empty, so it is the empty set: {}.
Property: There is only one empty set; any two sets that have no elements are equal.