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Published online by Cambridge University Press: 28 February 2022
Few topics in the philosophy of science have received as much discussion as the topic of explanation. Yet as Hanna's (1979, pp. 291-316) survey of recent research on scientific explanation makes abundantly clear, the field is riddled with competing “paradigms”, “models”, and “formulas” with little sign of any consensus.
It is useful in this sort of situation to engage in metatheoretic ascent. What do we or ought we to expect of a theory of explanation? Unless some measure of agreement can be reached about that question, how can we expect agreement (or even rationally adjudicable disagreement) on the adequacy of particular candidate theories? The purpose of this paper is to sketch a meta-theoretic characterization of what: a theory of explanation ought to be like. The view I will put forth is surely not the only one, but it is a view which I believe to be implicit in the work of a number of influential writers on the subject, including Hempel (1965).
I am grateful to Scott Soames and Jeffrey Poland for comments on an earlier version of this paper.