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Jan 4, 2021 at 6:55 vote accept A413
Oct 1, 2020 at 14:50 comment added Igor Khavkine I must unfortunately point out that this answer, nor the work of Baez pointed to, actually answers the OP's question. In none of the categories discussed in Baez's work could SR, CM, QM, and GR be objects.
Oct 1, 2020 at 14:47 comment added Qfwfq @Matt F.: isn't quantum mechanics 'all' about Hilb and quantum field theory (at least in an attempt to a formalization) 'all' about Cob?
Sep 30, 2020 at 5:01 vote accept A413
Oct 1, 2020 at 16:00
Sep 29, 2020 at 17:57 vote accept A413
Sep 30, 2020 at 5:01
Sep 29, 2020 at 17:26 comment added user44143 I'm not convinced by this paper's claims that these categories "play an important role" in the physical theories, but it is a bold and impressive attempt by Baez in the direction of the question here.
Sep 29, 2020 at 17:11 history edited Carlo Beenakker CC BY-SA 4.0
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Sep 29, 2020 at 17:05 history answered Carlo Beenakker CC BY-SA 4.0