Proof that 2 groups are isomorphic
120035
Pattern in Isomorphisms between $\mathbb Z_m \times \mathbb Z_n$ and $\mathbb Z_{mn}$
120155
How to show that this group presentation is isomorphic to dihedral group?
147574
Prove of a finite cyclic group of order $n$ is isomorphic tto $(\mathbb Z_n,+)$.
25439
f(a) = inverse of a is an isomorphism iff a group G is Abelian
93169
Show that $(\mathbb Z[x],+)$ and $(\mathbb Q_{>0},\cdot)$ are isomorphic groups
36882
Two finite abelian groups with the same number of elements of any order are isomorphic
28210
A finite group with exactly $2$ conjugacy classes isomorphic to $\mathbb{Z}_2$
3462
Proving a set of automorphisms of a group is a group under composition
141911
Prove that these two fields are isomorphic.
94090
How to show that for any abelian group $G$, $\text{Hom}(\mathbb{Z},G)$ is isomorphic to $G$
108213
$N_1,N_2,N_3 \unlhd G, N_i\cap N_j =\{e\}, G = N_iN_j$. Want to show that $G$ is abelian, $N_i$ are isomorphic.
56245
Let H be a subgroup of a group G. Prove that the following statements are equivalent.
71245
$2 \times 2 $ Orthogonal Group
151047
a non trivial example: $G/H$ is isomorphic to $G$
933
How many groups exist with order $n$ (two isomorphic groups are treated as the same group)
28576
Galois Groups are isomorphic to subgroups of symmetric groups.
99382
What is needed to make Euclidean spaces isomorphic as groups?