Let : R S be a homomorphism of rings, I an ideal in R, and Jan
Question:
Let ∫: R → S be a homomorphism of rings, I an ideal in R, and Jan ideal in S.
(a) ∫-1(J) is an ideal in R that contains Ker ∫.
(b) If ∫ is an epimorphism, then ∫(I) is an ideal in S. If ∫ is not surjective, ∫(I) need not be an ideal in S.
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a Let xy 1J and r R We need to show that xy and rx are also in 1J Sinc...View the full answer
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Related Book For
Algebra Graduate Texts In Mathematics 73
ISBN: 9780387905181
8th Edition
Authors: Thomas W. Hungerford
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