23

Answers
votes newest views recent
4
When Animals Attack
9
“Sums-compact” objects = f.g. objects in categories of modules?
4
Can a vector space over an infinite field be a finite union of proper subspaces?
5
Errata for Atiyah-Macdonald
5
Closedness of finite-dimensional subspaces
3
Are there locally compact groups which have no compact open subgroups and no discrete infinite cyclic subgroups?
1
Discrete cyclic subgroup.
6
Applications of the Chinese remainder theorem
4
Expressing adj(A) as a polynomial in A?
0
Unbounded operator bounded in a dense subset
2
How would one even begin to try to prove that a simple number-theoretic statement is undecidable?
7
Cardinality of the permutations of an infinite set
0
Knuth’s intuition that Goldbach might be unprovable
4
Galois theory timeline
1
Shortest/Most elegant proof for $L(1,\chi)\neq 0$
0
What are examples of mathematical concepts named after the wrong people? (Stigler’s law)
-3
Solutions to the Continuum Hypothesis
17
Examples of common false beliefs in mathematics. (3)
23
Quick proofs of hard theorems
3
Math paper authors' order
5
Suggestions for good books on class field theory
1
Subset of the plane that intersects every line exactly twice
2
What does it mean for a mathematical statement to be true?