# power set

## English

### Noun

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Wikipedia power set (plural power sets)

1. (set theory) The set of all subsets of a set. Notation for a set S: $\mathcal{P}(S)$or 2S
The power set of {1, 2} is {Ø, {1}, {2}, {1, 2}}

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Last modified on 10 November 2012, at 20:12