# Question about ideal of a ring

by DukeSteve
Tags: abstract algebra, ideals, rings
 P: 1 Hey Duke! I suggest you to check again your hypothesys instead. Well, $$\mathbb{Z}$$ is a ring with unity, right? What's the form of it's ideals? What's the form of the ideals of $$M_{n}(\mathbb{Z})$$? The problem of your approach is that I can't really see a way to use your hypothesys.