a. Let R and S be commutative rings with unities and f:R -S be an epimorphism of rings. Prove that S is an integral domain if and only if kerf is a prime ideal of R.
a. Let R and S be commutative rings with unities and f:R -S be an epimorphism of rings. Prove that S is an integral domain if and only if kerf is a prime ideal of R.
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter6: More On Rings
Section6.1: Ideals And Quotient Rings
Problem 31E: Let R be a commutative ring that does not have a unity. For a fixed aR, prove that the set...
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