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lhf
  • Member for 15 years, 9 months
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120
Is it bad form to write mysterious proofs without explaining what one intends to do?
Dec 24, 2016
116
Every nonzero element in a finite ring is either a unit or a zero divisor
Aug 31, 2011
106
Continuous bijection from $(0,1)$ to $[0,1]$
May 31, 2011
91
Is Lagrange's theorem the most basic result in finite group theory?
Mar 21, 2011
88
Direct proof that $\pi$ is not constructible
Jan 30, 2012
83
Why “characteristic zero” and not “infinite characteristic”?
Jan 12, 2012
81
Elegant proofs that similar matrices have the same characteristic polynomial?
Dec 2, 2011
78
Is an automorphism of the field of real numbers the identity map?
Jul 22, 2013
76
Proof: 1007 can not be written as the sum of two primes.
Nov 13, 2015
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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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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Lua print on the same line
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