i)Prove that a field has only two ideals. ii)Prove that a commutative ring with unity that has only two ideals is a field.
i)Prove that a field has only two ideals. ii)Prove that a commutative ring with unity that has only two ideals is a field.
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter8: Polynomials
Section8.1: Polynomials Over A Ring
Problem 15E: 15. Prove that if is an ideal in a commutative ring with unity, then is an ideal in .
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i)Prove that a field has only two ideals.
ii)Prove that a commutative ring with unity that has only two ideals is a field.
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