Which philosopher is known for his law of non-contradiction?

According to Aristotle, first philosophy, or metaphysics, deals with ontology and first principles, of which the principle (or law) of non-contradiction is the firmest. Aristotle says that without the principle of non-contradiction we could not know anything that we do know.

What idea did Aristotle reject?

Science, Metaphysics, and Logic. Aristotle rejected the idea of Plato’s “Theory of the Forms,” which stated that the idealized essence of an object existed apart from that object. Plato thought that physical things were representations of idealized perfect forms that existed on another plane of reality.

What does Aristotle mean when he refers to contrary?

Contrary is the relationship between two propositions when they cannot both be true (although both may be false). Thus, we can make an immediate inference that if one is true, the other must be false. The law holds for the A and E propositions of the Aristotelian square of opposition.

What are tautologies and contradictions?

A compound statement which is always true is called a tautology , while a compound statement which is always false is called a contradiction .

Who were Socrates Plato and Aristotle?

The Socratic philosophers in ancient Greece were Socrates, Plato, and Aristotle. These are some of the most well-known of all Greek philosophers. Socrates (470/469–399 B.C.E.) is remembered for his teaching methods and for asking thought-provoking questions.

How philosophy can be a principle of sufficient reason and non-contradiction?

The Principle of Sufficient Reason is a powerful and controversial philosophical principle stipulating that everything must have a reason, cause, or ground. This simple demand for thorough going intelligibility yields some of the boldest and most challenging theses in the history of philosophy.

What do you mean by non-contradiction?

Definition of noncontradiction : absence of logical contradiction … the law of noncontradiction, which states that contradictory propositions cannot both be true at the same time and in the same sense.—

What is contrary and contradictory?

A contradictory statement is one that says two things that cannot both be true. Contradictory is related to the verb contradict, which means to say or do the opposite, and contrary, which means to take an opposite view.