Image of a group homomorphism
= Image of a group homomorphism
The image of a group homomorphism $\phi:G\to H$ is the subgroup $\{\phi(g):g\in G\}$ of $H$.
= Image of a group homomorphism
The image of a group homomorphism $\phi:G\to H$ is the subgroup $\{\phi(g):g\in G\}$ of $H$.