Abstract

Relative Identity contains a sustained attack on the classical or absolute theory of identity and a defense of a non-classical or relative theory of identity. According to the absolute theory of identity each thing is identical with itself and with nothing other than itself. The fundamental principle of this theory is Leibniz' Law:From a variety of characteristic principles about identity can be derived, including The Indiscernibility of Identicals, The Identity of Indiscernibles, and the symmetry, reflexivity, and transitivity of identity.