Definition:Power


 * Power (Algebra): $x^y$ is the $y$th power of $x$.
 * Power of an Element: the same concept in Abstract Algebra.
 * Power (B-Algebras): A different definition tailored to B-algebras.


 * Powers of Group Elements: the same concept in Group Theory.
 * Power of a Set: Another name for the cardinality of a set.

Also see

 * Power set: the set of all subsets of a given set.