The main goal of this work is to provide a metaphysical account of properties and of how they are related to concrete particulars. On the broadest level, this work is a defense of tropes and of trope bundle theory as the best accounts of properties and objects, respectively, and, second, a defense of a specific brand of trope nominalism, Natural Class Trope Nominalism. Each of these tasks is pursued separately, with the first Part of this work acting as a general introduction and defense of tropes and trope bundle theory, and the second Part acting as the more specific defense of Natural Class ... More

The main goal of this work is to provide a metaphysical account of properties and of how they are related to concrete particulars. On the broadest level, this work is a defense of tropes and of trope bundle theory as the best accounts of properties and objects, respectively, and, second, a defense of a specific brand of trope nominalism, Natural Class Trope Nominalism. Each of these tasks is pursued separately, with the first Part of this work acting as a general introduction and defense of tropes and trope bundle theory, and the second Part acting as the more specific defense of Natural Class Trope Nominalism. In Part 1 it is argued that there are tropes. Part 1 also provides an outline of what tropes can do for us metaphysically, while remaining neutral between different theories of tropes. Included in Part 1 are an account of the universal–particular distinction, an argument for the existence of tropes based on the phenomenon of moving properties, the development of a trope bundle theory of objects and a trope-based solution to the problems of mental causations. The second Part presents a fuller picture of what a trope is by way of Natural Class Trope Nominalism, according to which a trope's nature is determined by membership in natural classes of tropes. In addition, in Part 2 a defense is developed of Natural Class Trope Nominalism against what have been thought to be fatal objections to this view, a defense grounded in property counterpart theory without modal realism.