Proving that every group of order $4$ is isomorphic to $\Bbb Z_4$ or $\Bbb Z^*_8$
36887
Suppose $G$ is a group of order 4. Show either $G$ is cyclic or $x^2=e$.
4996
Proving $Gal(K/\mathbb{Q})$ is $D_4$.
102429
There are 2 groups of order 6 (up to isomorphism)
83710
Order of a homomorphism of groups
90437
Let $G = \langle a\rangle$ a cyclic group of order m. Prove that G is isomorphic with $Z_m$.
18540
Isomorphism from $\mathbb{C}[G]$ to $\prod_{i=1}^h M_{n_i}(\mathbb{C})$.
933
How many groups exist with order $n$ (two isomorphic groups are treated as the same group)
137739
Prove that the group isomorphism $\mathbb{Z}^m \cong \mathbb{Z}^n$ implies that $m = n$
129789
Find all Quotient (or Factor) Groups of $D_4$ (Dihedral Group of order $8$)
12502
The center of a non-Abelian group of order 8
65968
Prove that any two cyclic groups of the same order are isomorphic?
61732
Prove any group with 3 elements is isomorphic to $\mathbb{Z}_3$
150204
Isomorphisms between the groups $U(10), U(5)$ and $\mathbb{Z}/4\mathbb{Z}$
57166
Showing that $\Bbb R[x] / \langle x^2 + 1 \rangle$ is isomorphic to $\Bbb C$ question
62277
Cayley tables for two non-isomorphic groups of order 4.
33387
Proof that $n\Bbb Z \leq \Bbb Z$ and are the only subgroups of $\Bbb Z$
127603
If $G$ be a group of order $8$ and $x$ be a element of order $4$. Prove that $x^2 \in Z(G)$