Published online by Cambridge University Press: 01 April 2022
I argue that 'c' occurs extensionally in 'c caused e' and 'D' occurs extensionally in 'c caused e because c is D'. I claim that this has been insufficiently appreciated because the two contexts are often run together and because it has not been clear that the description D of c is among the referents of an explanatory argument. I argue as well that Hume's analysis of causation is consistent with taking causation to be a relation between single events, and that even if events are eliminated as virtual entities, extensionality holds for all terms in the resulting context.
I wish to thank Lawrence Stern for stimulating discussions about causality and explanation, and Margarita Garcia for helpful comments on earlier drafts of this paper.