Borsuk-Ulam theorem for $n = 1$
40209
$f : S^1 \to\mathbb R$ is continuous then $f(x)=f(-x)$ for some $x\in S^1$
130081
Show that $A_n$ is the kernel of a group homomorphism of $S_n \rightarrow \{−1,1\}$.
33945
Showing that $|N \cap Z(G)| > 1$ for normal subgroups of p-groups
28658
$R$ with an upper bound for degrees of irreducibles in $R[x]$
5069
$GL_n(\mathbb F_q)$ has an element of order $q^n-1$
147429
Set of points in $\mathbb{C}$ s.t. $z^{n-1} = \overline z$
128835
Compactness of the set of $n \times n$ orthogonal matrices
38946
Show that $\{\cup_{n\in K} (n, n+1]: K \subset \mathbb{Z}\}$ is a $\sigma$-algebra on $\mathbb{R}$
48268
How many $\alpha \in S_n$ are such that $\alpha^2 = 1$?
3599
show that if ${a_n} \to a$, and $a>0$, then $\exists N$ such that $a_n>0$ for $n \ge N$.
135808
Show that there is a positive integer $n$ such that $G \cong \ker(\phi^{n}) \times \phi^{n}(G)$
84823
When is the group of units in $\mathbb{Z}_n$ cyclic?
94571
How can we prove that $N_G(H)=H$ implies $N_{f(G)}(f(H))=f(H)$
123891
There are finitely many maps on nonnegative integers satisfying $\phi(ab)=\phi(a)+\phi(b)$
154076
How to show this property of $\mathbb{RP}^{n}$.
61670
Proving that $(b_n) \to b$ implies $\left(\frac{1}{b_n}\right) \to \frac{1}{b}$
109200
Baby Rudin theorem 2.41