In mathematics, the power set (or powerset) of any set S, written, P(S), ℘(S) or 2S, is the set of all subsets of S, including the empty set and S itself. In axiomatic set theory (as developed, for example, in the ZFC axioms), the existence of the power set of any set is postulated by the axiom of power set.
Any subset of is called a family of sets over S.
Read more about Power Set: Example, Properties, Representing Subsets As Functions, Relation To Binomial Theorem, Algorithms, Subsets of Limited Cardinality, Topologization of Power Set, Power Object
Famous quotes containing the words power and/or set:
“The power of a movement lies in the fact that it can indeed change the habits of people. This change is not the result of force but of dedication, of moral persuasion.”
—Stephen Biko (19461977)
“We find it easy to set limits when the issue is safety.... But 99 percent of the time there isnt imminent danger; most of life takes place on more ambiguous ground, and children are experts at detecting ambivalence.”
—Cathy Rindner Tempelsman (20th century)