The Identity of Indiscernibles and the Articulability of Concepts (original) (raw)
Related papers
THE IDENTITY OF INDISCERNIBLES AND THE COLOCATION PROBLEM
Pacific Philosophical Quarterly, 2006
Abstract: The Identity of Indiscernibles is the principle that there cannot be two individual things in nature that are qualitatively identical. The principle is not exactly popular. Michael Della Rocca tries to resurrect it by arguing that we must accept this principle, for otherwise we cannot explain the impossibility of completely overlapping indiscernible objects of the same kind that share all their parts and exist in the same place at the same time. I try to show that his argument goes wrong: we need not embrace the identity of indiscernibles to deal with the co-location problem.
Identity over time: Objectively, subjectively
The Philosophical Quarterly, 2008
In the philosophy of science, identity over time emerges as a central concern both as an ontological category in the interpretation of physical theories, and as an epistemological problem concerning the conditions of possibility of knowledge. In Reichenbach and subsequent writers on the problem of indistinguishable quantum particles we see the return of a contrast between Leibniz and Aquinas on the subject of individuation. The possibility of rejecting the principle of the identity of indiscernibles has certain logical difficulties, leading us inexorably from ontology into epistemology. For the epistemological problem we attend to the differences that emerged between the (neo-)Kantian and logical empiricist traditions, also saliently displayed in Reichenbach's writings. After examining the contrast between Kant's and Leibniz's conceptions of empirical knowledge, specifically with respect to the irreducibility of spatiotemporal determinations, we explore an application of a neo-Kantian view to the same problem of indistinguishable quantum particles.
Conceptual conservatism and contingent composition
Unpublished, 2006
"Under what circumstances do things add up to or compose something?" This is what Peter van Inwagen calls the Special Composition Question. Everyone, it seems, has a different answer. Van Inwagen's, famously, is "when the activities of those things constitute a life". Other people --- nihilists about composition --- say "never!" Other people --- universalists about composition --- say "always!". Yet other people --- brutalists about composition --- say that there is no answer....
The Principle of the Identity of Indiscernibles and Quantum Mechanics*
Philosophy of Science, 2010
It is argued that recent discussion of the principle of the identity of indiscernibles (PII) and quantum mechanics has lost sight of the broader philosophical motivation and significance of PII and that the ‘received view’ of the status of PII in the light of quantum mechanics survives recent criticisms of it by Muller, Saunders, and Seevinck.
The Identity of the Indiscernibles anf the Principle of No Co-location (with R. Casati)
In this paper, we propose a revised version of Black’s original argument against the principle of identity of indiscernibles. Our aim is to examine a puzzle regarding the intuitiveness of arguments, by showing that the revised version is clearly less intuitive than Black’s original one, and appears to be unjustified by our ordinary means of assessment of intuitions.
Spatial Reasoning and Ontology: Parts, Wholes, and Locations
in M. Aiello, Ian E. Pratt-Hartmann, and J. van Benthem (eds.), Handbook of Spatial Logics, Berlin, Springer-Verlag, 2007
A critical survey of the fundamental philosophical issues in the logic and formal ontology of space, with special emphasis on the interplay between mereology (the theory of parthood relations), topology (broadly understood as a theory of qualitative spatial relations such as continuity and contiguity), and the theory of spatial location proper.
Midwest Studies in Philosophy, 1984
Causal accounts of the transtemporal identity of physical objects and of persons are not completely new. Passages in Hume can be read as suggesting causal accounts of the identity of physical objects and of the self, as can Kant's arguments that the successive states of an objective substance must be causally connected; and in this century, a variety of causal accounts of the identity conditions for persons and for physical objects have been proposed. Such accounts, especially for physical objects, have not been very fully developed, however, and here I want to provide a more detailed motivation for, and development of, a causal account of identity through time and to examine some of its implications. I think that my general line of argument applies both to persons and to physical objects, though to keep the discussion manageable I shall concentrate on the latter.
Extensionality, Multilocation and Persistence
The paper addresses various questions about the logical and metaphysical relations between notions of parthood, location and persistence. In particular it argues that the conjunction of mereological extensionalism and multilocation, is highly problematic, if not utterly inconsistent. It thus provides an alternate route to reject multilocation, one that does not rely on Barker and Dowe's well known argument, at least for those who endorse extensionality of parthood. It then argues that other major metaphysical theses such as three-dimensionalism turn out to be at odds with extensionalism.