Give three non-isomorphic groups of order 24, and explain why they are not isomorphic.
129157
An exercise on isomorphic groups of order 24
134376
Let $G$ be a nonabelian group. Let $a \in G$ have order $4$ and let $b \in G$ have order $3$. Then the order of the element $ab$ in $G$
102622
K is a subgroup of G. Show that K is not a normal subgroup
71035
Non abelian subgroup of a abelian group.
150207
Non isomorphic subgroups of cyclic groups
146386
Is there a reason why the number of non-isomorphic graphs with $v=4$ is odd?
61084
Examples of non-isomorphic fields with isomorphic group of units and additive group structure
86542
Group of positive rationals under multiplication not isomorphic to group of rationals
108044
Isomorphic extensions of $\mathbb Z_3$ by $\mathbb Z_3 \times \mathbb Z_3$ which are not equivalent
33152
Classifying groups of order 18
104562
Prove that $\mathbb{Z}$ is not isomorphic to additive group of any vector space over any field.
112165
Classification of groups of order 12
8066
Sort-of-simple non-Hopfian groups
122353
Status of the classification of non-finitely generated abelian groups.
134686
$D_3\oplus D_4$ not isomorphic to $D_{24}$
14003
$(\mathbb{Z}/2^n \mathbb{Z})^*$ is not cyclic Group for $n\geq 3$
2254
Finite group with isomorphic normal subgroups and non-isomorphic quotients?