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#1 2009-11-28 11:37:51
- GTK X Hunter
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- Registered: 2009-10-13
- Posts: 10
how to prove the subring?
Given Ring
and . If then show that is the subring of .Offline
#2 2009-11-28 13:13:03
- Ricky
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- Registered: 2005-12-04
- Posts: 3,791
Re: how to prove the subring?
These proofs typically go through without any difficulty; everything comes straight from definition. What step are you having trouble on?
"In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..."
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