logical complement

logical complement

(logic)In Boolean algebra, the logical complement ornegation of a Boolean value is the opposite value, given bythe following truth table:

A | -A--+---T | FF | T

-A is also written as A with a bar over it or with a smallvertical line hanging from the right-hand end of the "-"(LaTeX \eg) or as A'. In the C programming language, itis !A and in digital circuit design, /A.