Logical negation

MyWikiBiz, Author Your Legacy — Friday September 24, 2021
Revision as of 14:26, 21 May 2007 by Jon Awbrey (talk | contribs) (copy text from [http://www.opencycle.net/ OpenCycle] of which Jon Awbrey is the sole author)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigationJump to search

Logical negation is an operation on one logical value, typically the value of a proposition, that produces a value of true when its operand is false and a value of false when its operand is true.

The truth table of NOT p (also written as ~p or ¬p) is as follows:

Logical Negation
p ¬p

The logical negation of a proposition p is notated in different ways in various contexts of discussion and fields of application. Among these variants are the following:

Variant Notations
Notation Vocalization
\(\bar{p}\) bar p
\(p'\!\) p prime,

p complement

\(!p\!\) bang p

See also

Logical operators

Related topics