The existence of God, specifically the argument from contingency
Russell-Copleston Debate on God's Existence (1948)
A debate between an agnostic (Bertrand Russell) and a theist (Frederick Copleston) on whether the existence of God can be philosophically proven using the cosmological argument from contingency.
The case is decided
It wasBertrand Russell.
Russell defended 6 of 8 load-bearing claims while Copleston defended only 3 of 14, with key refutations in chains X2, X4, and X8. Russell's definitional challenges (C5, C8, C10) and counter-example (C19) dismantled Copleston's core argument from contingency. The verdict aligns with the claim tally despite Copleston's rhetorical persistence.
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Bertrand Russell
Agnostic; the existence of God cannot be proven, and the argument from contingency is invalid due to issues with the concepts of 'necessary being' and 'sufficient reason'.
- Claims raised10
- Defended9
- Refuted0
- Unanswered0
- Concessions0
- Fallacies (weighted)0.0
Frederick Copleston
Theist; the existence of God can be proven using the argument from contingency, which relies on the principle of sufficient reason and the distinction between contingent and necessary beings.
- Claims raised12
- Defended0
- Refuted9
- Unanswered3
- Concessions0
- Fallacies (weighted)1.4
Definitional alignment
When the same word means two different things, the entire exchange becomes contestable. Below: every term where the debaters did not agree on a definition.
- contingent beingnot alignedBertrand Russell
A being whose existence does not have significance within a rejected logical framework; lacks clear meaning.
Frederick CoplestonA being that does not contain within itself the reason for its existence and depends on something else for its existence.
high
- necessary beingnot alignedBertrand Russell
A term that can only be significantly applied to analytic propositions; lacks meaning when applied to beings.
Frederick CoplestonA being that must exist and cannot not exist, containing within itself the reason for its existence.
high
- sufficient reasonnot alignedBertrand Russell
Not clearly defined; seen as an unattainable or unnecessary concept.
Frederick CoplestonAn explanation adequate for the existence of a being, ultimately a total explanation to which nothing further can be added.
high
- analytic propositionnot alignedBertrand Russell
A proposition that is self-contradictory to deny and is tautological.
Frederick CoplestonA proposition that is necessary, though not necessarily tautological; includes hypothetical necessary propositions.
medium
- existence as a predicatenot alignedBertrand Russell
Existence is not a predicate; it cannot be significantly said of a subject named, only of a subject described.
Frederick CoplestonExistence can be a predicate, especially in the case of a necessary being whose essence involves existence.
medium
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