Editing Singleton (mathematics) (section)

{{Short description|Set with exactly one element}}
{{for|a sequence with one member|1-tuple}}

In [[mathematics]], a '''singleton''' (also known as a '''unit set'''<ref name="Stoll">{{Cite book  | last = Stoll  | first = Robert  | title = Sets, Logic and Axiomatic Theories  | publisher = W. H. Freeman and Company  | year = 1961  | pages = 5–6  }}</ref> or '''one-point set''') is a [[Set (mathematics)|set]] with [[Uniqueness quantification|exactly one]] [[element (mathematics)|element]]. For example, the set <math>\{0\}</math> is a singleton whose single element is <math>0</math>.