Singleton set: Difference between revisions

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imported>Richard Pinch
m (Singleton moved to Singleton set: more precise title, someone may write a Bridge article one day)
imported>Bruce M. Tindall
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In [[set theory]], a '''singleton''' is a [[set (mathematics)|set]] with exactly one element:
In [[set theory]], a '''singleton''' is a [[set (mathematics)|set]] with exactly one element:



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In set theory, a singleton is a set with exactly one element:

We have