Revision as of 07:36, 7 October 2008 by Nmisner (Talk)

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Every element of Z_3 (+) Z_9 is order 1,3,9.

Z_27 has an element of order 27.

Therefore they cannot be isomorphic.

--Neely

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Abstract algebra continues the conceptual developments of linear algebra, on an even grander scale.

Dr. Paul Garrett