Four-Dimensionalism An Ontology of Persistence and Time

Four-Dimensionalism defends the thesis that the material world is composed of temporal as well as spatial parts. Along the way many topics concerning the metaphysics of time and identity over time are addressed. These include the status of past and future objects, the nature of motion and change, the existence of composite objects, and examples involving two things in the same place at the same time (such as statues and lumps of clay).An original and highly readable study of the metaphysics of time and identity.