Abstract

Leibniz and Aristotle offer diametrically opposed accounts of what it is for ordinary particulars to be numerically diverse. Leibniz, through his Principle of the Identity of Indiscernibles (PII), affirms that numerically diverse particulars must have different qualities, whereas Aristotle insists that such particulars are different on account of their "matter". In this paper I seek to bridge the gap between these two rival accounts by means of a (PII)-like principle which seems to be a consequence of the Aristotelian position