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Reid Barton's user avatar
Reid Barton's user avatar
Reid Barton
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64
Analogue to covering space for higher homotopy groups?
Oct 17, 2009
56
What is (co)homology, and how does a beginner gain intuition about it?
Oct 15, 2009
54
Why is it so cool to square numbers (in terms of finding the standard deviation)?
Oct 18, 2009
49
Order of an automorphism of a finite group
Oct 18, 2009
47
Can a topos ever be an abelian category?
Dec 31, 2009
46
Most interesting mathematics mistake?
Oct 17, 2009
43
Are there two non-homotopy equivalent spaces with equal homotopy groups?
Nov 1, 2009
42
why haven't certain well-researched classes of mathematical object been framed by category theory?
Apr 23, 2010
36
Example of a good Zero Knowledge Proof
Apr 26, 2010
33
Two functors from Grp to Grp?
Nov 5, 2009
Top network posts
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122
When is memoization automatic in GHC Haskell?
63
Library function to compose a function with itself n times
35
Control.Monad.State found in multiple packages haskell
33
Illegal type signature in instance declaration
26
Is it possible to get the infinite kind error in Haskell 98?