HomeThe Book of InfinityA Panorama of LogicInfinite GamesProof and the ArtPhilosophy of MathematicsMy booksMusic videosArchiveLeaderboardAboutUltrafinitismUltrafinitism as arithmetic potentialismWe may fruitfully view the philosophy of ultrafinitism in a potentialist light, helping to illuminate its philosophical commitments.Jan 12 • Joel David Hamkins Two visions of ultrafinitism intricately intertwinedThese two concepts of ultrafinitism—one positing a largest number, another asserting totality for addition and multiplication but not exponentiation—are…Dec 29, 2025 • Joel David Hamkins Ultrafinitism with a largest numberThe theory of finite arithmetic is a form of ultrafinitism asserting that there is a largest natural number. But where should the numbers stop and why…Dec 19, 2025 • Joel David Hamkins UltrafinitismUltrafinitism is the philosophical view that only comparatively small or accessible numbers exist.Dec 12, 2025 • Joel David Hamkins © 2026 Joel David Hamkins · Privacy ∙ Terms ∙ Collection notice Start your SubstackGet the appSubstack is the home for great culture