1 votes 1 votes Let $A$ be a finite set of size $n$, the number of elements in the power set of $A \times A$ is $2^{2^n}$ $2^{n^2}$ ${(2^n)}^2$ ${(2^2)}^n$ Set Theory & Algebra go-mathematics-1 set-theory + – Bikram asked Aug 8, 2016 Bikram 259 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
Best answer 3 votes 3 votes Cardinality of |A*A| = n2 Power Set of |A*A| = 2n^2 Digvijay Pandey answered Sep 12, 2016 • selected Sep 13, 2016 by Arjun Digvijay Pandey comment Share Follow See all 0 reply Please log in or register to add a comment.