Identity

Identity criteria are essential for metaphysics, explaining when items are identical or distinct. The author discusses formulations of identity criteria and examines Leibniz's Law, which states that identicals are indiscernible and that indiscernibles are identical. The author also considers alternatives to Leibniz's Law and the possibility that no adequate identity criteria exist.

Format: Paperback / softback
Length: 75 pages
Publication date: 15 September 2022
Publisher: Cambridge University Press

Identity criteria are essential tools for metaphysicians, providing insights into the nature of identity and distinguishing between identical and distinct items. These criteria can also attempt to explain the basis of identity by exploring the factors that contribute to it. This Element has two primary objectives: to discuss formulations of identity criteria and to examine Leibniz's Law, a notorious criterion of object identity.

The first section focuses on the form of identity criteria. It explores different approaches to defining identity and discusses the criteria used to determine whether two objects are identical or distinct. The author discusses various formulations, including logical, metaphysical, and empirical criteria, and their strengths and weaknesses.

The second section delves into the better-regarded half of Leibniz's Law, known as the indiscernibility of identicals. It examines the concept of indistinguishability and discusses the criteria that are used to establish it. The author discusses various interpretations of Leibniz's Law and explores the arguments for and against it.

The third section examines the more controversial half of Leibniz's Law, the identity of indiscernibles. It discusses the challenges posed by this criterion and explores alternative approaches to understanding identity. The author considers the possibility that there may be no adequate identity criteria to be found and explores the implications of this conclusion for metaphysics.

In conclusion, identity criteria are powerful tools for metaphysicians, allowing them to explore the nature of identity and distinguish between identical and distinct items. While Leibniz's Law is a notorious criterion of object identity, it is only one aspect of identity criteria. By examining different formulations and exploring alternative approaches, metaphysicians can gain a deeper understanding of the complexities of identity and its foundations.

Weight: 122g
Dimension: 152 x 229 x 10 (mm)
ISBN-13: 9781009001342