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This category contains definitions related to Negation.
Related results can be found in Category:Negation.

The logical not or negation operator is a unary connective whose action is to reverse the truth value of the statement on which it operates.

$\neg p$ is defined as: $p$ is not true, or It is not the case that $p$ is true.

Thus the statement $\neg p$ is called the negation of $p$.

$\neg p$ is voiced not $p$.