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Mathematics
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Andrea Mori's user avatar
Andrea Mori's user avatar
Andrea Mori
  • Member for 14 years, 1 month
  • Last seen this week
  • Turin, Italy
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answer
155
Proofs that every mathematician should know.
Aug 5, 2012
answer
60
Are there real-life relations which are symmetric and reflexive but not transitive?
Jan 1, 2013
answer
44
Why can ALL quadratic equations be solved by the quadratic formula?
Jul 3, 2011
answer
37
If $x^m=e$ has at most $m$ solutions for any $m\in \mathbb{N}$, then $G$ is cyclic
Jul 11, 2011
answer
34
Given a matrix, is there always another matrix which commutes with it?
Dec 18, 2011
answer
34
Why are the solutions of polynomial equations so unconstrained over the quaternions?
Mar 21, 2012
answer
33
What is the single most influential book every mathematician should read?
Aug 4, 2010
answer
31
How to tell $i$ from $-i$?
Aug 1, 2012
answer
31
Is it true that the Fibonacci sequence has the remainders when divided by 3 repeating?
Jan 12, 2015
answer
24
Subfields of finite fields
Dec 13, 2011
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Editing comments to remove references to gender
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SE and MO as reference
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When en passant is the only legal move
23
Where to start typesetting chess with TeX
18
Cohomological characterization of CM curves
17
Why are side pawns better than center pawns in this position?
15
Carlsen beat a high ranking GM with 1 Nh3. Conclusions?