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Question
A null set is denoted by _____________.
A null set is denoted by _____________.
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Solution
The correct option is B ϕ
A null set is denoted by ϕ.
The null set, also called the empty set, is the set that does not contain anything. It is symbolized or {
}. There is only one null
set. In axiomatic
mathematics, zero is defined as the cardinality of the null set.
The empty set or null
set is the unique set having no elements; its size or
cardinality (count of elements in a set) is zero.
A null set is denoted by ϕ.
The null set, also called the empty set, is the set that does not contain anything. It is symbolized or { }. There is only one null set. In axiomatic mathematics, zero is defined as the cardinality of the null set.
The empty set or null set is the unique set having no elements; its size or cardinality (count of elements in a set) is zero.
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