Final answer:
The number of elements in the power set of a set with c elements is 2c.
Step-by-step explanation:
The number of elements in the power set of a set with c elements is 2c. This means that the power set contains all possible subsets of the original set, including the empty set and the set itself.
For example, if c = 3, then the original set has 3 elements. The power set will have 2³= 8 elements. These elements are: {}, {1}, {2}, {3}, {1,2}, {1,3}, {2,3}, {1,2,3}.
Therefore, the number of elements in the power set is 2 to c.