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How Truthful is the “Proof of the Truthful”?

In the third Lyceum Institute Colloquium of the year, we present Dr. Catherine Peters, who takes up a controversy between the Islamic philosophers Avicenna and Averroes concerning the “proof of the truthful”:

ABSTRACT: The “Proof of the Truthful” is Avicenna’s most famous argument for the existence of God. Beginning with the essential possibility of creatures, he argues that there must be a first, necessary, cause: God. This argument came to be known as the “Proof of the Truthful” because it proposes an argument which is, in theory, accessible to any rational being (not just to the “wise” or religiously affiliated). In this way, it is the “most truthful.” Though compelling, Avicenna’s proof has not escaped criticism, most notably from Averroes, who rejected Avicenna’s conception of “possibility” and “necessity.” Rejecting these concepts can have far-reaching consequences, not only for the cogency of Avicennian metaphysics, but for any natural theology that seeks to employ these concepts. The present study, therefore, will first defends “necessary” and “possible” as formulated in the metaphysics of Avicenna. It will then show how these concepts serve as premises in the “Proof of the Truthful.” Third, it will address and refute Averroes’ criticisms.

Dr. Peters’ paper is now available at the Lyceum Institute. The live Question & Answer session will be held on 16 June 2022 (Thursday) at 6:00pm ET.


Colloquia are available at every level of membership for the Lyceum Institute — starting as low as $10.50/month.

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