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Mathematics
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Andy
  • Member for 14 years, 1 month
  • Last seen more than 4 years ago
  • Italy
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Masters in Mathematics at the University of Milan

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11
Policy on accepting my own answer
Jul 23, 2011
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10
Happy First Birthday, M.SE!
Jul 24, 2011
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256
What's the difference between \mathrm and \operatorname?
19
Is the proof of this lemma really necessary?
18
Why is $\frac{1}{\infty } \approx 0 $ and $ \frac{1}{0} = {\infty}$?
17
If $A\subseteq\mathbb N$ and $\sum\limits_{a\in A}\frac1a$ converges then $A$ has natural density $0$
11
What's the cardinality of all sequences with coefficients in an infinite set?