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goformit100Best ResponseYou've already chosen the best response.0
@Muskan @abhi_abhi @electrokid
 one year ago

MuskanBest ResponseYou've already chosen the best response.1
In mathematics, the power set (or powerset) of any set S, written , P(S), 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.
 one year ago

abhi_abhiBest ResponseYou've already chosen the best response.0
he power set of {1,2,3,4} is {{}, {1}, {2}, {1,2}, {3}, {1,3}, {2,3}, {1,2,3}, {4}, {1,4}, {2,4}, {1,2,4}, {3,4}, {1,3,4}, {2,3,4}, {1,2,3,4}}.
 one year ago

JonaskBest ResponseYou've already chosen the best response.0
you just copied and pasted wiki
 one year ago

JonaskBest ResponseYou've already chosen the best response.0
i am just reading it now
 one year ago

abhi_abhiBest ResponseYou've already chosen the best response.0
If we have a set {a,b,c}: Then a subset of it could be {a} or {b}, or {a,c}, and so on, And {a,b,c} is also a subset of {a,b,c} (yes, that's true, but its not a "proper subset") And the empty set {} is also a subset of {a,b,c} In fact, if you list all the subsets of S={a,b,c} you will have the Power Set of {a,b,c}: P(S) = { {}, {a}, {b}, {c}, {a, b}, {a, c}, {b, c}, {a, b, c} } Think of it as all the different ways you can select the items (the order of the items doesn't matter), including selecting none, or all.
 one year ago
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