a negative statement; a statement that is a refusal or denial of some other statement
source: WordNet 3.0
the speech act of negating
source: WordNet 3.0
(logic) a proposition that is true if and only if another proposition is false
source: WordNet 3.0
The act of denying; assertion of the nonreality or untruthfulness of anything; declaration that something is not, or has not been, or will not be; denial; -- the opposite of affirmation.
