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May 28, 2022 at 16:13 history edited Martin Sleziak CC BY-SA 4.0
http -> https (the question was bumped anyway)
Feb 4, 2010 at 23:37 comment added John Stillwell Also, Beltrami's 1868 "pseudosphere" model of hyperbolic geometry (more like the universal cover of the pseudosphere), which should have settled the issue, was delayed for a year. Apparently Beltrami was at first deterred by criticisms from Cremona.
Feb 4, 2010 at 6:30 comment added Ilya Grigoriev Gauss also invented hyperbolic geometry, but himself rejected it. See Milnor's article on "150 years of hyperbolic geometry". I think there are also many other examples where Gauss's "few but ripe" policy made him reject amazing results he invented. Link (might need institutional access): ams.org/bull/1982-06-01/S0273-0979-1982-14958-8/home.html
Feb 3, 2010 at 15:30 history answered Steve Huntsman CC BY-SA 2.5