I suppose this should be an easy question. However, I am stuck with this:

Let be an integral domain, with 4 elements , where is the unity. Prove that has characteristic 2.

Thanks again.

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- Sep 18th 2009, 01:53 PMakolmanCharacteristic of an integral domain
I suppose this should be an easy question. However, I am stuck with this:

Let be an integral domain, with 4 elements , where is the unity. Prove that has characteristic 2.

Thanks again. - Sep 18th 2009, 01:55 PMNonCommAlg
- Sep 18th 2009, 02:15 PMakolman
Thanks again for your help.