Part of a Set E

Part of a Set E

Name given to each subset of a set E.


A set whose elements include all of the subsets or parts of a set E is noted like this: \(\mathcal{P}\textrm{(E)}\).

  • If Card(E) = \(n\), then: Card(\(\mathcal{P}\textrm{(E)}\)) = 2\(^{n}\).
  • A part of a set E that is different from E and not empty is called a proper part of a set E.


Consider: E = {1, 2, 3}.

Therefore: \(\mathcal{P}\textrm{(E)}\) = {∅, {1}, {2}, {3}, {1,2}, {1,3}, {2,3}, {1,2,3}}.

Try Buzzmath activities for free

and see how the platform can help you.