Question

Why is Negation a Logical connective?

Answer 1

A Logical Connective (also called a logical operator) is a symbol or a word which is used to connect two or more sentences. Each logical connective can be expressed as a truth function.

Negation is thus a unary (single-argument) logical connective. It may be applied as an operation on notions, propositions, truthvalues, or semantic values more generally. In classical logic, negation is normally identified with the truth function that takestruth to falsity and vice versa.

Negattion (not) is used to connect sentence and also it can be expressed as truth function.So it is called logical connective