Abstract
Laws of nature concern the natural properties of things. Newton’s law of gravity states that the gravitational force between objects is proportional to the product of their masses and inversely proportional to the square of their distance; Coulomb’s law states a similar functional dependency between charged particles. Each of these properties confers a power to act as specified by the function of the laws. Consequently, properties of the same quantity confer resembling powers. Any theory that takes powers seriously must account for their resemblance. This is the challenge set by the paper. The first part is devoted to Armstrong’s view according to which property resemblance reduces to partial identities between categorical properties. I argue that Armstrong’s solution to the challenge involves accepting determinable properties but that these should not be admitted. In the second part, I argue that dispositional essentialism can satisfactorily account for orderings among powers in terms of degrees of overlapping potentialities.
Keywords
Resemblance Categoricalism Dispositionalism Laws of nature PowersReferences
- Armstrong, D. M (1978) A Theory of Universals, Vol. 2 of Universals and Scientific Realism, Cambridge: Cambridge University Press.Google Scholar
- Armstrong, D. M. (1983) What is a Law of Nature? Cambridge: Cambridge University Press.CrossRefGoogle Scholar
- Armstrong, D. M. (1989) A Combinatorial Theory of Possibility, Cambridge: Cambridge University Press.CrossRefGoogle Scholar
- Armstrong, D. M. (1991) “Arda Denkel’s Resemblance Nominalism”, Philosophical Quarterly, 41, pp. 478–482.CrossRefGoogle Scholar
- Armstrong, D. M. (1997) A World of States of Affairs, Cambridge: Cambridge University PressCrossRefGoogle Scholar
- Bird, A. (1998) “Dispositions and Antidotes”, Philosophical Quarterly, 48, pp. 227–234.CrossRefGoogle Scholar
- Bird, A. (2007) Nature’s Metaphysics, Oxford: Oxford University Press.CrossRefGoogle Scholar
- Black, R. (2000) “Against Quidditism”, Australasian Journal of Philosophy, 78, pp. 87–104.CrossRefGoogle Scholar
- Dretske, F (1977) “Laws of Nature”, Philosophy of Science, 44, pp. 248–268.CrossRefGoogle Scholar
- Eddon, M (2007) “Armstrong on Quantities and Resemblance”, Philosophical Studies, 136, pp. 385–404.CrossRefGoogle Scholar
- Ellis, B. (2005) “Universals, the Essential Problem and Categorical Properties”, Ratio, 18, pp. 462–472.CrossRefGoogle Scholar
- Gibb, S. (2007) “Is the Partial Identity Account of Property Resemblance Logically Incoherent?”, dialectica, 61, pp. 539–558.Google Scholar
- Gillett, C and Rives, B. (2005) “The Non-Existence of Determinables: Or, a World of Absolute Determinates as Default Hypothesis”, Noûs, 39, pp. 483–504.CrossRefGoogle Scholar
- Handfield, T (2005) “Armstrong and the Modal Inversion of Dispositions”, The Philosophical Quarterly, 55, pp. 452–461.CrossRefGoogle Scholar
- Hawthorne, J (2002) “Causal Structuralism” in James Tomberlin (ed.) Metaphysics, Oxford: Blackwell.Google Scholar
- Johnston, M. (1992) “How to Speak of the Colours”, Philosophical Studies, 68, pp. 221–263.CrossRefGoogle Scholar
- Kim, J. (1993) Supervenience and Mind. Cambridge: Cambridge University Press.CrossRefGoogle Scholar
- Kistler, M. (2002) “The Causal Criterion of Reality and the Necessity of Laws of Nature”, Metaphysica, 3, pp. 57–86.Google Scholar
- Lewis, D. (1973) Counterfactuals, Oxford: Blackwell.Google Scholar
- Lowe, E.J. (2006) The Four-Category Ontology: A Metaphysical Foundation for Natural Science. Oxford: Oxford University Press.Google Scholar
- Martin, C.B. (1994) “Dispositions and Conditionals”, Philosophical Quarterly, 44, pp. 1–8.CrossRefGoogle Scholar
- Molnar, G. (2003) Powers: A Study in Metaphysics. Oxford: Oxford University Press.Google Scholar
- Morganti, M. (2012) “The Partial Identity Account of Partial Similarity Revisited”, Philosophia, 39, pp. 527–546.Google Scholar
- Robinson, H. (1982) Matter and Sense. Cambridge: Cambridge University Press.CrossRefGoogle Scholar
- Tooley, M. (1977) “The Nature of Laws”, Canadian Journal of Philosophy, 7, pp. 667–698.Google Scholar
- Vetter, B. (2009) “Nature’s Metaphysics: Laws and Properties”, Logical Analysis and History of Philosophy, 12, pp. 320–328.Google Scholar