Kripke´s necessity of biological origin and Aristotle´s hypothetical necessity of efficient cause. A comparison

Abstract:

This paper tries a reduction of one the so called properties of origin defended by Saul Kripke into Aristotelian terms. In special, we comment several passages from the Metaphysics, the Physics, and the main biological works as well, in order to show that Aristotle´s hypothetical necessity of efficient cause is formally equivalent to the necessity of biological origin.

Key words:

Kripke, necessity of origin, Aristotle, hypothetical necessity, efficient cause.