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Moishe Kohan's user avatar
Moishe Kohan's user avatar
Moishe Kohan
  • Member for 11 years, 8 months
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  1. "I think, but I do not exist."

  2. “Three things never cease to amaze me: The starry heavens above me, the moral law within me and down-votes on correct answers. I do not seek or conjecture either of them as if they were veiled obscurities or extravagances beyond the horizon of my vision.”

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Top posts
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46
Exotic $R^4$ as the universal covering space
Oct 12, 2018
38
Examples of common false beliefs in mathematics
Apr 23, 2020
36
Is every connected subgroup of a Euclidean space closed?
Oct 2, 2024
23
When does a group act effectively and holomorphically on some Riemann surface?
Oct 1, 2023
21
What to do if paper was rejected with good report?
Mar 5
20
Existence of a quasi-isometric residually finite group?
Apr 15, 2020
19
Examples of common false beliefs in mathematics
Feb 1, 2021
18
Fundamental groups and complements of manifolds
Jan 26
18
Story of "Grothendieck's prime number" 57
Apr 1, 2019
18
Is there a continuous partition of space into circles?
Oct 24, 2024
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News of potential interest to the MO community
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141
One of my postdocs elegantly solved a problem another postdoc had been working on for years. I have no idea how to navigate this delicate situation
75
I found a serious mistake in a paper written by my professor's previous student. To whom should I report my findings?
67
How should I investigate and respond to a potentially false claim of a publication in the CV of an applicant?
59
Existence of a Riemannian metric inducing a given distance.
52
What's the intuition behind Pythagoras' theorem?