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lhf
  • Member for 14 years, 4 months
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119
Is it bad form to write mysterious proofs without explaining what one intends to do?
Dec 24, 2016
answer
113
Every nonzero element in a finite ring is either a unit or a zero divisor
Aug 31, 2011
answer
103
Continuous bijection from $(0,1)$ to $[0,1]$
May 31, 2011
question
90
Is Lagrange's theorem the most basic result in finite group theory?
Mar 21, 2011
question
88
Direct proof that $\pi$ is not constructible
Jan 30, 2012
answer
82
Why “characteristic zero” and not “infinite characteristic”?
Jan 12, 2012
answer
77
Elegant proofs that similar matrices have the same characteristic polynomial?
Dec 2, 2011
answer
75
Is an automorphism of the field of real numbers the identity map?
Jul 22, 2013
answer
74
Proof: 1007 can not be written as the sum of two primes.
Nov 13, 2015
answer
72
Why does Wolfram Alpha say the roots of a cubic involve square roots of negative numbers, when all three roots are real?
Oct 31, 2016
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Congratulations, lab bhattacharjee!
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Congratulations, Qiaochu!
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Requests for electronic versions of books
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Too many soft questions?
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I just noticed my LaTeX error in a comment but it's been 5 minutes. How can I fix it?
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Check if a file exists with Lua
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How do I increase sudo password remember timeout?
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How to determine if a list of polygon points are in clockwise order?
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Lua print on the same line
74
How do I append to a table in Lua