Does atheism entail a contradiction?



Necessary existence, Ontological argument, God's necessity, Perfect being theology, Natural theology


I consider whether a contradiction may be deducible from the proposition that God does not exist. First, I expose a candidate counterexample to a key premise in Swinburne’s argument against the deducibility of a contradiction from God’s non-existence. Second, I present two new strategies one might use to deduce a contradiction. Both strategies make use of Tarski's T-schema together with developments in other theistic arguments. One argument is a conceptualist argument from necessary truth for a necessary mind, and the other is a two-stage contingency argument for the same conclusion. The purpose of this article is not to decisively defend these arguments, but to expose new territory relevant to investigating the nature of God's necessity (if God exists).


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Biografia do Autor

Joshua Rasmussen, Azusa Pacific University

PhD at Notre Dame University. An assistant Professor of philosophy at Azusa Pacific University, California (USA).


Collins, Robin. “The Teleological Argument.” In The Blackwell Companion to Natural Theology, edited by W. L. Craig and J.P. Moreland. Oxford: Blackwell, 2009.

Goldschmidt, Tyron. Ontological Arguments. Cambridge: Cambridge University Press, 2020

Huemer, Michael. “There is No Pure Empirical Reasoning,” Philosophy and Phenomenological Research 95, no. 3 (2017): 592-613.

Oppy, Graham. Describing Gods: an Investigation of Divine Attributes. Cambridge: Cambridge University Press , 2014.

Pruss, Alexander & Rasmussen, Joshua. Necessary Existence. Oxford: Oxford University Press, 2019.

Pruss, Alexander & Koons, Robert. “Skepticism and the Principle of Sufficient Reason,” Philosophical Studies 178, no. 4 (2021): 1079-1099.

Rasmussen, Joshua. How Reason Can Lead to God. Illinois: Intervarsity Press, 2019.

Rasmussen, Joshua. “From Necessary Truth to Necessary Existence,” Polish Journal of Philosophy 7, no. 1 (2013): 19-30.

Rasmussen, Joshua. “The Argument from Contingency.” In Contemporary Arguments in Natural Theology, edited by Colin Ruloff and Peter Horban. New York: Bloomsbury, 2021.

Rumfitt, Ian. “Logical Necessity.” In Modality: Metaphysics, Logic, and Epistemology, edited by Bob Hale and Aviv Hoffman, Oxford: Oxford University Press , 2010.

Smith, Quentin. “The Conceptualist Argument for God’s Existence,” Faith and Philosophy 11, no. 1 (1994): 38-49.

Swinburne, Richard. The Existence of God. Oxford: Clarendon Press, 1979.

Swinburne, Richard. “What Kind of Necessary Being Could God Be?” In Ontological Proofs Today, edited by Miroslaw Szatkowski. Ontos Verlag, 2012.

Welty, Greg & Anderson, James. “The Lord of Noncontradiction: An Argument for God from Logic,” Philosophia Christi 13, no. 2 (2011): 321-38.




Como Citar

RASMUSSEN, J. . Does atheism entail a contradiction?. Manuscrito: Revista Internacional de Filosofia, Campinas, SP, v. 44, n. 4, p. 31–48, 2021. Disponível em: Acesso em: 27 set. 2022.