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Unformatted text preview: n (1) and ab = ( ab )mod n, (2) where the addition and multiplication on the right sides are the usual operations in Z . Prove Z 5 is a ﬁeld and prove Z 4 is not. 1...
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This note was uploaded on 02/22/2010 for the course MATH Math 115 taught by Professor Taft during the Fall '06 term at UCLA.
 Fall '06
 Taft
 Linear Algebra, Algebra

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