The set of functions from a set $X$ to a set $Y$ is denoted $Y^X$.
Now a question about precedence of operations:
Should I write $X^{(Y^Z)}$ or $X^{Y^Z}$ is enough?
The set of functions from a set $X$ to a set $Y$ is denoted $Y^X$.
Now a question about precedence of operations:
Should I write $X^{(Y^Z)}$ or $X^{Y^Z}$ is enough?
Always, always, always be clear with this order of operations.
$2^{2^{2^2}}$ could equal 256 or 16536 depending on the order.