not

adv : negation of a word or group of words; "he does not speak

French"; "she is not going"; "they are not friends";

"not many"; "not much"; "not at all"

NOT

The {Boolean} function which is true only if its input

is false. Its {truth table} is:

A | NOT A

--:----------

F | T

T | F

(1996-11-04)