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April 12th, 2009, 09:48 AM  #1  
Newbie Joined: Apr 2009 Posts: 11 Thanks: 0  algebraic number theory  proving an ideal is prime
I don't understand the following proof of the fact that in the number ring R=Z[sqrt(5)], the ideal (2, 1+sqrt(5)) is prime. Quote:
Lots of thanks.  
April 14th, 2009, 12:15 PM  #2  
Senior Member Joined: Oct 2007 From: Chicago Posts: 1,701 Thanks: 3  Re: algebraic number theory  proving an ideal is prime Quote:
Quote:
Does that help? Quote:
Cheers.  
April 14th, 2009, 04:46 PM  #3  
Newbie Joined: Apr 2009 Posts: 11 Thanks: 0  Re: algebraic number theory  proving an ideal is prime Quote:
 

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