Difference between revisions of "Logical negation"
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Revision as of 14:42, 21 May 2007
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:
| p | ¬p |
|---|---|
| F | T |
| T | F |
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:
| Notation | Vocalization |
|---|---|
| \(\bar{p}\) | bar p |
| \(p'\!\) | p prime, p complement |
| \(!p\!\) | bang p |
See also
Logical operators
Related topics
Aficionados
- See Talk:Logical negation for discussions/comments regarding this article.
- See Logical negation/Aficionados for those who have listed Logical negation as an interest.
- See Talk:Logical negation/Aficionados for discussions regarding this interest.
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