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Jan 14 at 16:38 history edited David White
Edited tag since it was on the front page anyway.
Jan 14 at 16:05 history protected CommunityBot
Jul 6, 2021 at 6:35 answer added P Vanchinathan timeline score: 2
Nov 28, 2020 at 10:25 vote accept Ned
Sep 13, 2020 at 16:29 comment added polfosol Since it's a bit late to post an answer, I leave this as a comment. For two millennia, mathematicians tried to prove the parallel postulate. But in the 19th century, the field was effectively closed and sealed by introducing non-Euclidean geometries ―thanks to Lobachevsky, János Bolyai and Riemann. The independence of the parallel postulate from Euclid's other axioms was finally demonstrated by Eugenio Beltrami in 1868.
Dec 5, 2019 at 18:08 comment added Dabed I would guess Markov Jr proof that the classification of four-dimensional manifolds is undecidable possible made some people change subjects but I don't think it closed a field to classify as an answer per se, so just leaving it as a comment
Dec 4, 2019 at 23:42 answer added JCM timeline score: 7
Dec 4, 2019 at 19:28 answer added Adam P. Goucher timeline score: 11
Dec 4, 2019 at 11:15 answer added Hollis Williams timeline score: 23
Dec 4, 2019 at 7:38 answer added Vivek Shende timeline score: 132
Dec 3, 2019 at 22:59 history became hot network question
Dec 3, 2019 at 22:35 comment added YCor An upper bound on the year of publication would be a good safeguard against too opinion-based answers.
Dec 3, 2019 at 22:32 answer added LSpice timeline score: 12
Dec 3, 2019 at 21:55 answer added Michael timeline score: 31
Dec 3, 2019 at 20:57 comment added Fedor Petrov As one poet used to say, "yesterday I wrote four poems about love. Closed the subject."
Dec 3, 2019 at 20:34 answer added Sam Hopkins timeline score: 13
Dec 3, 2019 at 20:20 answer added Alexandre Eremenko timeline score: 48
Dec 3, 2019 at 16:26 history made wiki Post Made Community Wiki by S. Carnahan
Dec 3, 2019 at 15:45 answer added Carl-Fredrik Nyberg Brodda timeline score: 34
Dec 3, 2019 at 15:38 answer added Andy Sanders timeline score: 62
Dec 3, 2019 at 15:21 history edited Ned
edited tags
Dec 3, 2019 at 14:54 comment added JoshuaZ I'm not sure that I'd consider the classification of finite simple groups to be closed; there's still a lot of work on trying to simplify the proof, or to prove some results without relying on the full classification.
Dec 3, 2019 at 14:50 review First posts
Dec 3, 2019 at 16:23
Dec 3, 2019 at 14:45 history asked Ned CC BY-SA 4.0