NOT

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NOT

(logic)
The Boolean function which is true only if its input is false. Its truth table is:

A | NOT A --+---------- F | T T | F

NOT

A Boolean logic operation that reverses the input. If 0 is input, 1 is output, and vice versa. See AND-OR-NOT.
References in classic literature ?
Up came the little girl, with her hand out, and a half-shy, half-merry look in her blue eyes, as she said, inquiringly, "This is Tom, is n't it?"
Why did n't she come, too?" asked Polly, trying to look demure, while her eyes danced in spite of her.
Then he had n't done anything for her but carry the bag a few steps; yet, she thanked him.
I had a nice time coming, and no trouble, except the tipsy coachman; but Tom got out and kept him in order, so I was n't much frightened," answered innocent Polly, taking off her rough-and-ready coat, and the plain hat without a bit of a feather.
he was n't tipsy; and Tom only did it to get out of the way.
"Oh, they laugh at everything the least bit odd, and that is n't pleasant." Fanny did n't say "countrified," but she meant it, and Polly felt uncomfortable.
"I 'm so poorly, mamma says I need n't go to school regularly, while you are here, only two or three times a week, just to keep up my music and French.
"Am I odd?" asked Polly, struck by the word and hoping it did n't mean anything very bad.
"I am a little girl; so why should n't I?" and Polly looked at her simple blue merino frock, stout boots, and short hair, with a puzzled air.
But she did n't let the contrast between herself and Fan trouble her; for in a minute she laughed and said, contentedly, "My mother likes me to dress simply, and I don't mind.
I have n't heard it this many a day." Polly did n't like to sing before strangers, for she had had no teaching but such as her busy mother could give her; but she had been taught the utmost respect for old people, and having no reason for refusing, she directly went to the piano, and did as she was bid.
"You must n't mind my staring, dear," said Madam, softly pinching her rosy cheek.