Exercise 111.1.9 (078G)—The Stacks project

Processing math: 100%

Exercise 111.1.9. Let $A$ be a ring. Show that $A$ is a product of two nonzero rings if and only if $A$ has a nontrivial idempotent.

Comments (0)

There are also:

2 comment(s) on Section 111.1: Algebra

In your comment you can use Markdown and LaTeX style mathematics (enclose it like $\pi$ ). A preview option is available if you wish to see how it works out (just click on the eye in the toolbar).

Comments (0)

Post a comment