In Boolean algebra, the logical complement or negation of a Boolean value iS the oppoSite value, given by the following truth table: A | -A --+--- T | F F | T -A iS alSo written aS A with a bar over it or with a Small vertical line hanging from the right-hand end of the "-" (LaTeX
eg) or aS A' . In the C programming language, it iS !A and in digital circuit deSign, /A. (1995-01-24)