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EntityQ1165112· pop 29· linked from 595 articles

Also known as unit set, 1-tuple, single, monuple, monad

set with exactly one element

Wikidata facts

Subclass of
set
Followed by
unordered pair
Show 3 more facts
set cardinality
1
different from
singleton pattern
maintained by WikiProject
WikiProject Mathematics
Sources (2)

via Wikidata · CC0

~5 min read

Encyclopedic overview

In mathematics, a singleton (also known as a unit set or one-point set) is a set with exactly one element. For example, the set

{ 0 }

Excerpted from Wikipedia’s “singleton” article, available under the CC BY-SA 4.0 licence.