Prove that a group of size $\ge18$ people can be assembled from groups of 4 and 7
11359
Determine the Set of a Sum of Numbers
31340
Concurrent lines proof for a regular 18-gon
126113
Prove the existence of order 4 subgroups of order 8 groups
15210
Group of order 6 proof
150188
Construct a non-abelian group of order 75
134938
Committee combinatorics
19843
if there are 4 different tables and 18 people, how many ways can the people be seated to have at least 4 in each table?
4505
Number of students in school club : $4$ Circles Venn Diagram Puzzle
156319
Show that a group with $|G| = 33$ contains an element of order $3$
3317
Subgroup generated by $2$ and $7$ in $(\mathbb Z,+)$
68882
Path to Combinatorics Problem [$1.11$]
31252
"Efficient version" of Cayley's Theorem in Group Theory
24212
proving how many permutations exist.
92057
Prove that for every odd integer n, there is a group...
1409
Proving that the given set has at most $2^{n-1}$ elements
115833
$m \times n$ persons stand in $m$ rows and $n$ columns
102429
There are 2 groups of order 6 (up to isomorphism)