Mathematics
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bryn

Apparently, this user prefers to keep an air of mystery about them.

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  • Melbourne, Australia
  • Member for 10 years, 6 months
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  • Last seen 2 hours ago

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142 Why does the series $\sum_{n=1}^\infty\frac1n$ not converge? Jul 21 '10
127 Why is $1$ not a prime number? Jul 20 '10
120 Is $0$ a natural number? Jul 21 '10
110 Why is the derivative of a circle's area its perimeter (and similarly for spheres)? Jul 24 '10
93 Why is the volume of a cone one third of the volume of a cylinder? Jul 24 '10
48 Are there any interesting semigroups that aren't monoids? Jul 22 '10
32 Why is $x^0 = 1$ except when $x = 0$? Jul 20 '10
28 Why isn't reflexivity redundant in the definition of equivalence relation? Jul 22 '10
24 Characterising functions $f$ that can be written as $f = g \circ g$? Jul 29 '10
15 Can a function be differentiable at the end points of its (closed interval) domain? May 23 '15
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