olemus
hulga \(A\) kõikidest alamhulkadest \(B\subseteq A\) moodustatud hulk
= the set that contains all subsets of a given set

tähis
\(P(A)\) või ka \(2^A\)

näiteid
\(P(\{1,2\}) = \{\emptyset, \{1\}, \{2\},\{1,2\} \}\)

ülevaateid
https://www.mathsisfun.com/sets/power-set.html

https://en.wikipedia.org/wiki/Power_set

https://math.libretexts.org/Bookshelves/Combinatorics_and_Discrete_Mathematics/A_Spiral_Workbook_for_Discrete_Mathematics_(Kwong)/04%3A_Sets/4.02%3A_Subsets_and_Power_Sets