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  1. 冪集 - 維基百科,自由的百科全書

    數學 上,集合的 冪集 (英語: power set),定義為由該集合全部 子集 為元素構成的集合。 給定集合 ,其冪集 (或作 )以符號表示即為 。 在 公理集合論 (例如 ZFC集合論)中, 冪集公 …

  2. Power Set - Math is Fun

    A Power Set is a set of all the subsets of a set. For the set a,b,c: The empty set is a subset of a,b,c. And these are subsets:

  3. Power Set - Definition, Cardinality, Properties, Proof, Examples.

    Power Set - Power set is the set containing all the subsets of a given set along with the empty set. It is denoted as P (S) for a set 'S'. Learn about its definition, cardinality, properties, proof along …

  4. Power Set - GeeksforGeeks

    Jul 23, 2025 · In order to define a power set, we can simply say that a power set is simply a set that contains all the subsets of the original set, including the null or empty set.

  5. What is a power set? - CK-12 Foundation

    In set theory, the power set of a set is the collection of all possible subsets of the set. It is denoted as P (S) or 2 S, where S is the original set.

  6. BYJU'S Online learning Programs For K3, K10, K12, NEET, JEE, UPSC ...

    In set theory, the power set (or power set) of a Set A is defined as the set of all subsets of the Set A including the Set itself and the null or empty set. It is denoted by P (A).

  7. Power Set | Definition, Formula and Examples - BrightChamps

    Oct 28, 2025 · A power set is a collection of all possible subsets, including the empty set, and the original set. It is denoted with the letter P. Cardinality refers to the number of elements in a set.

  8. Power Set: Definition, Examples, Properties, and Applications

    Jul 18, 2025 · A power set of a set S is the collection of all possible subsets of S, including the empty set ∅ and S itself. Learn everything about power sets in mathematics: formal definition, …

  9. Power Set - Definition, Formula, Properties, Examples

    Power set is the set of all subsets of a given set. Explore the definition and properties of a power set along with solved examples, practice problems, & more.

  10. Power Set: Definition, Cardinality, Properties & Examples

    In set theory, the power set of a given set can be understood as the set of all subsets of any set, say X including the set itself along with the null/ empty set.