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zeb

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Name zeb
Member for 3 years
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Age 22
Jun
11
awarded  Nice Question
Jun
11
revised Can anyone analyze this misere game?
fixed broken links
May
28
accepted Sheaf cohomology in non-commutative setup
May
28
answered Sheaf cohomology in non-commutative setup
May
25
comment Is it possible to generalize functions like $x^y, \ln x, \sin x, \arctan x$ to surreal numbers or surcomplex numbers?
What on earth is this direct integration supposed to be? All you've said about it is that I should not chop the domain into pieces, whatever that means...
May
21
comment objects which can’t be defined without making choices but which end up independent of the choice
It seems like now you need to argue that the collection of isomorphism classes of n-step extensions actually forms a set, though.
Apr
27
comment When does the finite union of convex sets have a hole in it?
If you have a way test whether intersections of the convex sets are nonempty, you can adapt the solution to this problem: mathoverflow.net/questions/21911/…
Apr
25
accepted A divergent series related to the number of divisors of of p-1
Apr
25
answered A divergent series related to the number of divisors of of p-1
Apr
10
revised Reals with integer powers bounded away from integers?
extraneous we
Apr
10
revised Reals with integer powers bounded away from integers?
fixed error
Apr
10
answered Reals with integer powers bounded away from integers?
Mar
28
accepted reverse coin order by swapping pairs?
Mar
28
revised reverse coin order by swapping pairs?
hopefully, made it prettier
Mar
28
answered reverse coin order by swapping pairs?
Mar
16
comment The four squares theorem from the Gauss-Legendre three squares theorem
0 and 1 are both squares...
Feb
19
awarded  Favorite Question
Jan
29
comment Sets of integers represented by degree zero rational functions
The restriction to degree zero doesn't actually matter. If $P$ and $Q$ have different degrees you can always introduce a new variable $z$ and replace $P$ with $P + 4PQz$ and $Q$ with $Q+4PQz$. The new rational function will be degree $0$ and can only be an integer when $z=0$, when $P=0$, or when $P=Q\ne 0$.
Jan
24
comment Is every positive multiple of 6 the sum of two primes?
I strongly doubt it. If someone had a proof of the weaker assertion, I can't see any plausible reason that the method wouldn't extend to Goldbach's conjecture itself.