NOT

"NOT" is a logical operator used to reverse the truth value of a statement. If a statement is true, applying "NOT" makes it false, and vice versa. For example, if "It is raining" is true, then "NOT it is raining" is false. It helps to create conditions and simplify decision-making in logic, mathematics, and programming. Essentially, "NOT" provides a way to express the opposite of a given statement or condition.