This lecture discusses the ancient Greek philosopher Aristotle' work, On Interpretation, focusing on his discussion of what the implications of modal propositions are, that is, propositions that bear upon possibility, contingency, impossibility, and necessity. He identifies propositions of these sorts that imply each other.To support my ongoing work, go to my Patreon site - www.patreon.com/sadlerIf you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIOYou can find over 4,000 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadlerPurchase Aristotle's On Interpretation - amzn.to/3nS55ud