Skip to main content

Timeline for Hausdorff and Naive Set Theory

Current License: CC BY-SA 4.0

8 events
when toggle format what by license comment
Nov 27, 2023 at 17:58 vote accept Thomas Benjamin
Oct 6, 2023 at 16:00 history edited Glorfindel CC BY-SA 4.0
broken link fixed, cf. https://meta.mathoverflow.net/q/5301/70594
Jan 27, 2013 at 15:53 comment added Thomas Benjamin The actual title of the Friedman paper is "The Axiomatization of Set Theory by Extensionality, Separation, and Reducibility". Sorry.
Jan 27, 2013 at 14:27 comment added Thomas Benjamin @Andres: Since ZF via Separation and Replacement is infinitely axiomatizable, any finite (or infinite) list of axioms derived from the Separation and Replacement schema are fragments and might be deemed falling short of the mark (I hope that this is not too silly or stupid a remark--if it is, my apologies...). Could, for example, one show that large cardinal axioms could not be construed as instances of replacement or separation (I'm thinking of Harvey Friedman's paper, "The Axiomatization of Set Theory by Extensionality, Separation, and Replacement")? Is this just a silly idea?
Jan 27, 2013 at 13:52 comment added Thomas Benjamin @John: 'Lirbert' should be "Thierry Libert". Sorry.
Jan 27, 2013 at 13:48 comment added Thomas Benjamin @John: Nice answer. I looked through Blumberg's review and thoroughly enjoyed it! Another good article along the same line is Peter Koepke's "Felix Hausdorff and the Foundations of Mathematics". In it, regarding the paradoxes, Koepke quotes Hausdorff as saying (quoted from the Grundzuge), "we want to admit the naive notion of set, but observing the restrictions which cut off the way to that [the--my comment] paradox[es]." The works of Skolem, Esser, C.C. Chang, Hinnion, Brady, P.C. Gilmore, Lirbert, and others still researching Naive Set Theory come to mind....
Jan 26, 2013 at 2:48 comment added Andrés E. Caicedo The original axiomatization of set theory missed foundation and replacement, which are key components of our current intuitive picture of the set theoretic universe. The Zermelo-Fraenkel list misses large cardinals. And so on. Perhaps the idea that the axiomatization was premature was not that off the mark.
Jan 26, 2013 at 2:37 history answered John Stillwell CC BY-SA 3.0