Mathematics
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lhf
  • Member for 12 years, 8 months
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All Questions Answers
Score Newest
answer
116
Is it bad form to write mysterious proofs without explaining what one intends to do?
Dec 24, 2016
answer
103
Every nonzero element in a finite ring is either a unit or a zero divisor
Aug 31, 2011
answer
97
Continuous bijection from $(0,1)$ to $[0,1]$
May 31, 2011
question
85
Is Lagrange's theorem the most basic result in finite group theory?
Mar 21, 2011
question
82
Direct proof that $\pi$ is not constructible
Jan 30, 2012
answer
80
Why “characteristic zero” and not “infinite characteristic”?
Jan 12, 2012
answer
73
Proof: 1007 can not be written as the sum of two primes.
Nov 13, 2015
answer
71
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
answer
71
Why can't a set have two elements of the same value?
Sep 17, 2014
answer
67
Is an automorphism of the field of real numbers the identity map?
Jul 22, 2013
Top Meta posts
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54
Congratulations, lab bhattacharjee!
40
Congratulations, Qiaochu!
20
Requests for electronic versions of books
17
Too many soft questions?
17
I just noticed my LaTeX error in a comment but it's been 5 minutes. How can I fix it?
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122
Check if a file exists with Lua
104
How do I increase sudo password remember timeout?
91
Lua print on the same line
78
How to determine if a list of polygon points are in clockwise order?
70
How do you cleanly exit interactive Lua?

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