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Answers
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4
The four squares theorem from the Gauss-Legendre three squares theorem
2
trigonometric identity needed for sums involving secants
2
Awfully sophisticated proof for simple facts
12
The set of orders of elements in a group
8
Non-rigorous reasoning in rigorous mathematics
5
For consecutive primes $a\lt b\lt c$, prove that $a+b\ge c$.
5
FLT from Mochizuki’s proof of abc
5
Gauss’s views on pure mathematics
2
German mathematical terms like “Nullstellensatz”
19
Titles composed entirely of math symbols
15
Pseudonyms of famous mathematicians
4
“Oldest” bug in computer algebra system?
4
Density and Sums of Reciprocals
5
Good books on Arithmetic Functions ?
4
Papers that debunk common myths in the history of mathematics (2)
13
Is there a non-trivial group G isomorphic to Aut(G)?
3
Is there another proof for Dirichlet’s theorem?
5
Looking for an interesting problem/riddle involving triple integrals.
4
When factors may be cancelled in homeomorphic products?
5
Chebyshev’s approach to the distribution of primes
3
Shortest/Most elegant proof for $L(1,\chi)\neq 0$
9
Good papers/books/essays about the thought process behind mathematical research
4
What are examples of mathematical concepts named after the wrong people? (Stigler’s law)
1
Fermat numbers and the infinitude of primes
5
Theorems with unexpected conclusions
36
Nontrivial question about fibonacci numbers? (2)
2
Most interesting mathematics mistake?
2
Interesting applications of the Pigeon-hole Principle
7
Favorite popular math book
3
Fundamental Examples
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