Proving that the groups $S_3$ and $D_6$ are isomorphic
107163
Proof that $S_3$ isomorphic to $D_3$
37928
Isomorphism between $D_{2n}/Z(D_{2n})$ and $D_n$
109596
Isomorphism from $\mathrm{Aut}(\mathbb{Z}/2\mathbb{Z}\times \mathbb{Z}/2\mathbb{Z})$ to $S_3$
115876
$D_6 \cong D_3\times \mathbb Z_2$
84869
Are the groups $\mathbb{C}$ and $\mathbb{R}$ isomorphic?
37904
Prove that the multiplicative groups $\mathbb{R} - \{0\}$ and $\mathbb{C} - \{0\}$ are not isomorphic.
51861
$S_4$ is not isomorphic to $D_{12}$
120155
How to show that this group presentation is isomorphic to dihedral group?
121449
An isomorphism from $GL_{2}(\mathbb{F_{2}})$ to $S_{3}$
102429
There are 2 groups of order 6 (up to isomorphism)
107687
How to prove that $U_{2^n}$ is isomorphic as group to $\mathbb Z_2 \times \mathbb Z_{2^{n-2}}$ for $n \ge 3$?
23579
If $G$ is isomorphic to $H$, then ${\rm Aut}(G)$ is isomorphic to ${\rm Aut}(H)$
11665
Show that $D_{12}$ is isomorphic to $D_6\times C_2$
18415
Direct sum of Abelian groups and Isomorphism
15210
Group of order 6 proof
126098
Isomorphism of factor groups
83919
How to show $D_3\oplus D_4$ is not isomorphic to $D_{24}$?