Let $(G_1,\circ_1)$ be a group with composition law $\circ_1$ and $(G_2,\circ_2)$ a group with composition law $\circ_2$.
Let $f:G_1 \rightarrow G_2$ be a group homomorphism.
The group homomorphism $f$ is defined to be surjective if and only if:
for every $g_2\in G_2$ there is a $g_1\in G_1$ with $f(g_1)=g_2$
...a synonym for "surjective homomorphism" is "epimorphism", and we also say, "the homomorphism is onto".
Which of the following are true?
Select ALL that apply.