The Problem of Universals and the Limits of Truth-Making

There is no single problem of universals but a family of difficulties that treat of a variety of interwoven metaphysical, epistemological, logical and semantic themes. This makes the problem of universals resistant to canonical reduction (to a ‘once-and-for-all’ concern). In particular, the problem of universals cannot be reduced to the problem of supplying truth-makers for sentences that express sameness of type. This is (in part) because the conceptual distinction between numerical and qualitative identity must first be drawn before a sentence is eligible to be supplied with truth-makers. The case is made through a consideration of a recent argument by Gonzalo Rodriguez-Pereyra.