...This introductory chapter presents an outline of the metaphysics of identity and individuality, which emphasizes the conceptual distinction between individuality and distinguishability. The Principle of Identity of Indiscernibles effectively reduces the former to the latter, but notions...

... extension Abelard Peter universals form memory realism and anti realism principle of sufficient reason or PSR principle of the identity of indiscernibles or PII inherence being in reality eternity fundamental level modes essence or nature substance Descartes Aristotle Spinoza attributes...

...An individual has thisness if there could be a different individual who had all the same properties (in a very wide sense of ‘property’) – i.e. if the identity of indiscernibles does not apply to it. Souls have thisness, material objects might have thisness, but times and places do not have...

... and the role that Caroline played in its inception and development. I then turn to a discussion of the main themes of the correspondence, paying particular attention to the importance of Caroline’s presence in shaping the themes of the debate: the principle of sufficient reason, the identity of indiscernibles...

...These “paradoxes” or unfamiliar theoretical consequences of Leibniz’s account of a complete notion, are as follows: The first is the principle of the identity of indiscernibles, which states that each substance is unique. The second is that on the genus-specie classification system each substance...

... is often related to the idea that relations can individuate, and to debates about Principle of Identity of Indiscernibles (PII) and the nature and status of individuality. It is argued that popular forms of argument against the grounding of individuality in relations only work if they also work against...

... to flesh out this sense in terms of the principle of the identity of indiscernibles (PII). A summary and critique of this work is given by Caulton (2013) , who characterizes it in the following way: early folklore claimed that the PII holds for fermions (i.e., particles that obey Fermi–Dirac statistics...

..., subject to certain constraints. However, the sense of individuality here cannot be understood in terms of the Identity of Indiscernibles, since on a standard interpretation of quantum theory, Leibniz’s Principle is violated by both fermions and bosons. Criticisms of this argument are reviewed...

... Postulate metaphysics Redhead M Teller P Identity of Indiscernibles indiscernibility structure The development of the foundations of physics in the twentieth century has taught us a serious lesson. Creating and understanding these foundations turned out to have very little to do...

... of the existence of God. In making this case, it considers Spinoza’s arguments for necessitarianism, causal and conceptual dependence, and the identity of indiscernibles, and it concludes that none of them rely on the PSR. It further argues that the limited scope of Spinoza’s PSR is a philosophical advantage...

... Schneider S Wilson J emergence physicalism Stubenberg L desire emotion grounding intentionality Spinoza mind body numeric identity identity of indiscernibles Spinoza claims that the mind and body are one and the same. But he also claims that the mind thinks and does not move, whereas the body...

...The debate about individuality, quantum particles, and the Principle of the Identity of Indiscernibles is discussed. If the definability of identity is at stake, then the cut does not come between individuals and nonindividuals as usually defined, but rather between weakly discernible...

...The results from the previous chapters are put together in this chapter, where it is concluded that the Identity of Indiscernibles is a central but inessential principle of Leibniz’s philosophy. contingency necessity quantity Casati L Causation concepts possible worlds Principle...

...This book is a study of Leibniz’s Principle of Identity of Indiscernibles, the principle that rules out numerically distinct but perfectly similar things. The Identity of Indiscernibles was a central principle in Leibniz’s philosophy. Leibniz derived it from more basic principles and used...

.... In the service of a one category ontology, the chapter argues for mereological bundle theory, and explores new ways in which mereological bundle theory can address concerns about the identity of indiscernibles and indiscernibility issues in quantum mechanics. abstracta constituent ontology Lewis David...

... of the forms of Leibniz’s doctrine of the Identity of Indiscernibles—which can be defined as the thesis that no two distinct particular things can share all their suchnesses. That is precisely what one must argue against in arguing for the irreducibility of thisness to suchness. Section 8.3...

... the principle of the Identity of Indiscernibles and a Principle of Plenitude. The Identity of Indiscernibles is the principle that necessarily, if any object x has a certain complete set of properties in one world, there is no distinct object in any other world with just that set of properties...

.... This task is both important and necessary. It is important because, if Black’s world contains two purely qualitatively indiscernible spheres, then if Black’s world is possible, the version of the Principle of Identity of Indiscernibles according to which no objects can be purely qualitatively indiscernible...

...This chapter presents two arguments for the Principle of Identity of Indiscernibles, the principle that necessarily, no two concrete objects share all their non-trivializing properties, whether purely qualitative ones or impurely qualitative ones. The first argument appeals to broadly Humean...