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Comparing the Structures of Mathematical Objects

Wilhelm, Isaac (2021) Comparing the Structures of Mathematical Objects. Synthese.

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Abstract

A popular method for comparing the structures of mathematical objects, which I call the `subset approach', says that X has more structure than Y just in case X's automorphisms form a proper subset of Y's automorphisms. This approach is attractive, in part, because it seems to yield the right results in some comparisons of spacetime structure. But as I show, it yields the wrong results in a number of other cases. The problem is that the subset approach compares structure using automorphism sets. So a different approach is needed: structure should be compared using automorphism groups.


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Item Type: Published Article or Volume
Creators:
CreatorsEmailORCID
Wilhelm, Isaaciwilhelm@nus.edu.sg
Keywords: structure, metaphysics, philosophy of science, philosophy of physics, group theory
Subjects: Specific Sciences > Mathematics
Specific Sciences > Physics
Specific Sciences > Physics > Relativity Theory
Depositing User: Isaac Wilhelm
Date Deposited: 16 Dec 2025 20:02
Last Modified: 16 Dec 2025 20:02
Item ID: 27486
Journal or Publication Title: Synthese
Subjects: Specific Sciences > Mathematics
Specific Sciences > Physics
Specific Sciences > Physics > Relativity Theory
Date: 2021
URI: https://philsci-archive.pitt.edu/id/eprint/27486

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