boolean function
nounUK /ˈbuːliən ˈfʌŋkʃən/
US /ˈbuliən ˈfʌŋkʃən/
A boolean function is a rule that takes true-or-false inputs and gives back a true-or-false answer.
The boolean function returns true only when both switches are on.
OTHER MEANINGS
2. In mathematics, a function whose arguments and result each take values in a two-element set, usually {0, 1}.
Every boolean function of two variables can be written as a truth table with four rows.
3. In computer science, a subroutine that evaluates a condition and returns either true or false.
The program calls a boolean function to check whether the user is logged in.
4. In digital circuit design, a mapping from input bit patterns to a single output bit, realized by logic gates.
The engineer simplified the boolean function before building the circuit.