7
Fibonacci numbers and proof by induction
math.stackexchange.com
7
Cauchy's functional equation for $\mathbb R^n$
math.stackexchange.com
7
How to prove that if convex $A \subset \mathbb{R}^n$ and $A+A=A$ then $0 \in cl(A)$?
math.stackexchange.com
7
Prove that $\sum_{n\leq x}d^2(n)=O(x\log^3 x)$
math.stackexchange.com
7
Would this be an example of a Sidon set?
math.stackexchange.com
7
Why is the quotient map $SL_n(\mathbb{Z})$ to $SL_n(\mathbb{Z}/p\mathbb Z)$ is surjective?
math.stackexchange.com
7
How do I prove the completeness of $\ell^p$?
math.stackexchange.com
7
Continuous open surjection on Reals
math.stackexchange.com
7
Find $\lim\limits_{n\rightarrow\infty}(n!)^{1/n^2}$
math.stackexchange.com
7
Steinhaus theorem for topological groups
math.stackexchange.com
7
Does every extension of a finite group by $\mathbb{R}^n$ split?
math.stackexchange.com
7
What is the probability that two randomly selected derangements of order $n$ are derangements of each other?
math.stackexchange.com
6
infinity sum of numbers
math.stackexchange.com
6
In how many sequences of length $n$, the difference between every 2 adjacent elements is $1$ or $-1$?
math.stackexchange.com
6
Maximum intersecting subsets
math.stackexchange.com
6
Elements in group extensions which cancel unary terms in the language of groups
mathoverflow.net
6
The growth rate of a commutator set in a non-elementary group
mathoverflow.net
6
Is there a permutation invariant for graphs?
mathoverflow.net
6
Given two ratios $\frac{p_i}{q_i}$, what is $\frac{p_1+p_2}{q_1+q_2}$ in their terms
math.stackexchange.com
6
Subgroup of GL(2,Z) generated by two matrices.
math.stackexchange.com
6
Is there a combinatorial reason for variable-independence of this binomial-coefficient identity?
mathoverflow.net
6
a question about $\epsilon$ net of a compact metric space.
mathoverflow.net
6
Estimate the coefficients of a polynomial against its maximum
math.stackexchange.com
6
What is the probability that two random permutations have the same order?
mathoverflow.net
6
$g=h_1...h_n$ and $h_i h_j=h_jh_i$
math.stackexchange.com
6
Fixed points of $x\mapsto 2^{2^{2^{2^x}}} \mod p$
mathoverflow.net
6
Is every finite simple group a quotient of a braid group?
math.stackexchange.com
6
Non-isomorphic groups which are "quasi-isomorphic".
math.stackexchange.com
6
Mean value of the smallest selected number if we keep selecting numbers uniformly from 0 and 1 as long as they are decreasing
math.stackexchange.com
6
Does every sequence of group epimorphisms (between finitely generated groups) contain a stable subsequence?
math.stackexchange.com
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