Power set
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In set theory, the power set of a set X is the set of all subsets of X.
- Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \mathcal{P}X = \{ A : A \subsetseq X \} . \, }