## Negation Operator (NOT)

### The negation operator (NOT) is a logical operator that reverses the truth value of a proposition

The negation operator (NOT) is a logical operator that reverses the truth value of a proposition. In mathematics and logic, propositions are statements that can be either true or false. The negation operator is denoted by the symbol “¬” or “~”. When applied to a true proposition, the negation operator makes it false, and when applied to a false proposition, it makes it true.

The negation operator can be represented using truth tables, which show all possible combinations of truth values for propositions and their corresponding negations. For example, if we have a proposition “P”, which can be either true or false, the negation of “P” is denoted as “¬P”. The truth table for this negation operator would be:

| P | ¬P |

|—|—-|

| T | F |

| F | T |

In this truth table, when “P” is true, the negation “¬P” is false, and when “P” is false, the negation “¬P” is true.

The negation operator is commonly used in mathematical proofs and in programming languages. It allows us to express logical conditions, such as “not P”, “not equal to”, “not in”, and so on. It helps us to evaluate and express the opposite of a given statement, which is essential in various fields of mathematics and logic.

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