Recent content by fischer

never mind. i got it. the proposition is false... here, i attached the solution.

I want to answer this question: Find all the ideals of the direct product of rings R \times S. (I think this means show that the ideals are I \times J where I, J are ideals of R, S, respectively.) I think the problem is that I don't know how to show that any ideal of R \times S is of the...

thanks for the input! :) well one thing i did realize is that often the reason i was stuck was because i failed to notice something more basic. of course my experience is quite limited so i don't know if this is worth mentioning in a more advanced setting... ( more likely that it is general...

Hi. i'm an undergrad, and a beginner in maths. i don't really know how other people study math ( i really don't since i haven't really asked anyone ), but typically when you see a new theorem, you try to prove it, right? now, I'm not talking about being able to correctly write down the proof...