 Further discussion of this principle and Aristotle’s arguments concerning it belong to a treatment of his metaphysics (see  Aristotle: Metaphysics).  However, it should be noted that: (1) these arguments draw on Aristotle’s views about logic to a greater extent than any treatise outside the logical works themselves; (2) in the logical works, the principle of non-contradiction is one of Aristotle’s favorite illustrations of the “common principles” (koinai archai) that underlie the art of dialectic.