I do. However, I don't see how to construct a function based on this. I apologize for not being clear but the goal is to construct a bijective homorphic function. Then I can conclude that they are isomorphic.
Homework Statement
Find a normal subgroup H of Zmn of order m where m and n are positive integers. Show that H is isomorphic to Zm.
Homework EquationsThe Attempt at a Solution
I am honestly not even sure where to start. My initial thoughts were if Zmn was isomorphic to Zm x Zn then I could...