Logical negation

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
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:

Variant Notations

Notation	Vocalization
	bar p
	p prime, p complement
	bang p

Contents 1 Syllabus 1.1 Logical operators 1.2 Related topics 2 Document history

[edit] Syllabus

[edit] Logical operators

Exclusive disjunction Logical conjunction Logical disjunction Logical equality

Logical implication Logical NAND Logical NNOR Negation

[edit] Related topics

Ampheck Boolean domain Boolean function Boolean-valued function

Logical graph Logical matrix Minimal negation operator Peirce's law

Propositional calculus Truth table Universe of discourse Zeroth order logic

[edit] Document history

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