nLab boolean function

A boolean function of $n$ variables is a function from $\mathbb{B}^n$ to $\mathbb{B}$, where $\mathbb{B}$ is the boolean domain. Compare a boolean-valued function, where $\mathbb{B}^n$ may be replaced by any set $X$.

The logical operations in classical logic may all be interpreted as boolean functions, given by their truth tables.