Abstract

Ever since Quine’s „No entity without identity“ questions about identity and ontology have been closely connected. The present article aims at a survey of ontologies of space and space-time by considering questions such as how to identify places across possible worlds, how to identify places through time, how to identify places across possible worlds in space-time, and how to identify Minkowski events across possible worlds. In the course of considering these questions, the classical debate betwen Leibniz and Clarke and Kant’s systematic contribution to this debate, his famous 1768 article on the distinction between left and right, is scrutinized by means of only recently developed three-dimensional products of modal logics