38. Let R be a ring and let I be an ideal of R. Prove that the factor ring RII is commutative if and only if rs – sr E I for all r and s in 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 36E: 36. Suppose that is a commutative ring with unity and that is an ideal of . Prove that the set of...
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Can someone please help me understand the following problem. I need to know how to start the problem. i need to know the theorems ,identities,  used please thank you.

 

38. Let R be a ring and let I be an ideal of R. Prove that the factor ring
RII is commutative if and only if rs – sr E I for all r and s in R.
Transcribed Image Text:38. Let R be a ring and let I be an ideal of R. Prove that the factor ring RII is commutative if and only if rs – sr E I for all r and s in R.
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