When is a Concrete Property Basic?

Abstract

We more or less understand how composition works in the case of objects. We cement bricks together to build a wall. We stir together red paint and yellow paint to get orange paint. In both cases, one way or another, A = B + C. This paper examines composition in the case of concrete natural properties. It explains why property composition is so much less straightforward than object composition. Then it distinguishes strictly basic properties (like the mass of an electron), compositely basic properties (like the mass of a planet), and fully non-basic properties (like the saltiness of blood). It shows how strictly basic properties compose, or result in, compositely basic and fully non-basic properties, which differ from, yet depend for their natures on, the strictly basic properties they result from. It explains the characteristics and differences of these types of properties. It notes that the existence of compositely basic and non-basic properties grounds an argument for the genuine existence of composite properties as well as the composite objects they characterize. Finally, it defends the usefulness of these distinctions by identifying projects they assist, and by applying them both to mark off distinct metaphysical views too often conflated and to correct sundry metaphysical mistakes.