Associations to the word «Negation»

Wiktionary

NEGATION, noun. (uncountable) The act of negating something.
NEGATION, noun. (countable) A denial or contradiction.
NEGATION, noun. (logic) (countable) A proposition which is the contradictory of another proposition and which can be obtained from that other proposition by the appropriately placed addition/insertion of the word "not". (Or, in symbolic logic, by prepending that proposition with the symbol for the logical operator "not".)
NEGATION, noun. (logic) The logical operation which obtains such (negated) propositions.

Dictionary definition

NEGATION, noun. A negative statement; a statement that is a refusal or denial of some other statement.
NEGATION, noun. The speech act of negating.
NEGATION, noun. (logic) a proposition that is true if and only if another proposition is false.

Wise words

There is no sickness worse for me than words that to be kind must lie.
Aeschylus