Principle of contradiction Meaning, Definition & Usage
Definitions
(Logic) , the axiom or law of thought that a thing cannot be and not be at the same time, or a thing must either be or not be, or the same attribute can not at the same time be affirmed and and denied of the same subject. It develops itself in three specific forms which have been called the "Three Logical Axioms." First. "A is A." Second, "A is not Not-A" Third, "Everything is either A or Not-A."
