Question

a set empty set symbol is​

Answer 1

Step-by-step explanation:

what is this

Answer 2

Empty Set: The empty set (or null set) is a set that has no members.

Notation: The symbol ∅ is used to represent the empty set, { }.

Example:

∅ = The collection of people attending MSUM who are 200 years old (verbal)

∅ = { } (roster)

∅ = {x : x is a person attending MSUM who is 200 years old.} (set-builder)

Note: {∅} does not symbolize the empty set; it represents a set that contains an empty set as an element and hence has a cardinality of one.

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