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Matteo Capucci (he/him) (Jun 08 2025 at 16:29):I'm writing something on the notion of map of 2-algebras whose relevant square is a pullback. As far as I know, the only place where this notion is discussed (in the 1-dimensional case) is this n-cafè post of @Tom Leinster's.
Does anynone have any other references to point out, besides this one & the ones cited there?
Nathanael Arkor (Jun 08 2025 at 17:22):In case you didn't spot it, Tom wrote up the contents of this blog post in Appendix B of the paper Notions of Möbius inversion.
Matteo Capucci (he/him) (Jun 09 2025 at 06:45):I didn't! Thanks for the tip