Final answer:
The power set is all possible subsets of s which is denoted as p(s).
Step-by-step explanation:
The power set of a set s is the set of all possible subsets of s. In other words, it is a collection of all the different combinations of elements that can be formed from the original set.
For example, if s = {1, 2}, then the power set of s is {{}, {1}, {2}, {1,2}}. It contains all the subsets of s, including the empty set, the set itself, and all possible combinations of its elements.
The power set of s is expressed as p(s).