Post #2061457
2026-04-10 18:29 UTC
@ncf I was very lucky, my introduction to axiomatic set theory was accidentally from Kelley (1955) and Kelley set theory is different from ZF in a way that really highlights ZF's limitations. So whenever I encountered the ZF fundamentalists I had a solid foundation to say “no, it doesn't have to be that way”.
Replies (1)
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@mjd@mathstodon.xyz 2026-04-10 18:56
@ncf I now remember that even earlier I got a brief exposure to NBG, from Kaplansky's book, on the recommendation of my real analysis professor. So I got lucky twice! And because of this, I realize, one of my recurring roles on Math SE has been the guy who pops up to say that set theory doesn't have to always go the way ZF goes.