EMPTYSET

Empty set

In mathematics, and more specifically set theory, the empty set is the unique set having no elements; its size or cardinality is zero. Some axiomatic set theories assure that the empty set exists by including an axiom of empty set; in other theories, its existence can be deduced. Many possible properties of sets are trivially true for the empty set.

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empty set

Noun

  1. The unique set that contains no elements. Notation: ∅ or {}


The above text is a snippet from Wiktionary: empty set
and as such is available under the Creative Commons Attribution/Share-Alike License.

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