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- 38Research done by high-school students
- 33difference between class, set , family and collection
- 32Proof the Fibonacci numbers are not a polynomial.
- 30Find five consecutive odd integers such that their sum is $55$.
- 30Digit sequence that is not prime in any base
- 29What is category theory useful for?
- 28What's a good place to learn Lie groups?
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10 Do we already have a list of problems that are almost like this one?(how many words can we make with the letters of BANANA) jul 22
1 Suppose $A$ is linked to $B$ and $B$ is linked to $C$. Will $A$ appear to be linked to $C$? jul 25