Smallest $m$ such that $C_n$ embeds into $S_m$
31252
"Efficient version" of Cayley's Theorem in Group Theory
62755
The simplest way of proving that $|\mathcal{P}(\mathbb{N})| = |\mathbb{R}| = c$
40743
When a semigroup can be embedded into a group
69367
covering map with finite fibres and preimage of a compact set
51480
How much of an $n$-dimensional manifold can we embed into $\mathbb{R}^n$?
9009
$n$ choose $k$ where $n$ is less than $k$
1756
1-point compactification and embedding
110018
Conjugacy classes in $A_n$.
114916
$\mathbb Z_{mn}$ isomorphic to $\mathbb Z_m\times\mathbb Z_n$ whenever $m$ and $n$ are coprime
84491
Finding the smallest positive integer $n$ such that $S_n$ contains an element of order 60.
51914
Show that $S$ is compact.
131594
Can the symmetric group $S_n$ be imbedded as a subgroup in $A_{n+1}$?
25576
Characterization of short exact sequences
4111
Outer measure is countably subadditive
11566
Similar matrices and minimal polynomial
63574
small limits in the pointed category of a category with all small limits
90537
Converse of Fermat's Little Theorem.