Hacker News: benmandrewhttps://news.ycombinator.com/user?id=benmandrewHacker News RSShttps://hnrss.org/hnrss v2.1.1Fri, 14 Aug 2026 20:20:45 +0000<![CDATA[New comment by benmandrew in "The lattice of sets of natural numbers is rich (2021)"]]>It's a very interesting idea; if you want to learn more about it, look up "ultrafinitism".

]]>Thu, 13 Aug 2026 16:04:46 +0000https://news.ycombinator.com/item?id=49288035benmandrewhttps://news.ycombinator.com/item?id=49288035https://news.ycombinator.com/item?id=49288035<![CDATA[The lattice of sets of natural numbers is rich (2021)]]>Article URL: https://jdh.hamkins.org/the-lattice-of-sets-of-natural-numbers-is-rich/

Comments URL: https://news.ycombinator.com/item?id=49243687

Points: 107

# Comments: 27

]]>Mon, 10 Aug 2026 13:53:13 +0000https://jdh.hamkins.org/the-lattice-of-sets-of-natural-numbers-is-rich/benmandrewhttps://news.ycombinator.com/item?id=49243687https://news.ycombinator.com/item?id=49243687<![CDATA[Beautiful description of the lattice of sets of natural numbers]]>Article URL: https://jdh.hamkins.org/the-lattice-of-sets-of-natural-numbers-is-rich/

Comments URL: https://news.ycombinator.com/item?id=49042427

Points: 1

# Comments: 0

]]>Fri, 24 Jul 2026 22:32:03 +0000https://jdh.hamkins.org/the-lattice-of-sets-of-natural-numbers-is-rich/benmandrewhttps://news.ycombinator.com/item?id=49042427https://news.ycombinator.com/item?id=49042427