NOT — English Dictionary

Noun

1. A unary operation on logical values that changes true to false, and false to true.

   Synonyms

   ˈ

   Examples

   More examples (1)

   Notice that the NOT symbol is simply a BUF symbol followed by a bubble. The bubble represents logical inversion and is the actual NOT gate. Anytime you see a bubble attached to a gate pin, you can detach it from the pin and insert a separate NOT gate in its place without affecting the resulting logic.