Prove that every ring homomorphism f from Zn to itself has
Chapter 15, Problem 8E(choose chapter or problem)
Prove that every ring homomorphism \(\phi\) from \(Z_{n}\) to itself has the form \(\phi(x)=a x\), where \(a^{2}=a\).
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer