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On Representational Capacities, with an Application to General Relativity

  • Samuel C. FletcherEmail author
Article
Part of the following topical collections:
  1. Special Issue : Hole Argument

Abstract

Recent work on the hole argument in general relativity by Weatherall (Br J Philos Sci 69(2):329–350, 2018) has drawn attention to the neglected concept of (mathematical) models’ representational capacities. I argue for several theses about the structure of these capacities, including that they should be understood not as many-to-one relations from models to the world, but in general as many-to-many relations constrained by the models’ isomorphisms. I then compare these ideas with a recent argument by Belot (Noûs, 2017.  https://doi.org/10.1111/nous.12200) for the claim that some isometries “generate new possibilities” in general relativity. Philosophical orthodoxy, by contrast, denies this. Properly understanding the role of representational capacities, I argue, reveals how Belot’s rejection of orthodoxy does not go far enough, and makes better sense of our practices in theorizing about spacetime.

Keywords

Representation Abstraction Units Isomorphism General relativity Hole argument Models in science 

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Copyright information

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Authors and Affiliations

  1. 1.Department of PhilosophyUniversity of Minnesota, Twin CitiesMinneapolisUSA
  2. 2.Munich Center for Mathematical PhilosophyLudwig Maximilian University of MunichMunichGermany

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