1. logical complement 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.
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