1. Let ./ be an ideal of the ring R. Show that the ring R/J is commutative if and only if xy-yx J for every x,y e R. Deduce that if K, and K₂ are ideals of R and both R/K, and R/K₂ are commutative, then R/(K₁ K₂) is also commutative
1. Let ./ be an ideal of the ring R. Show that the ring R/J is commutative if and only if xy-yx J for every x,y e R. Deduce that if K, and K₂ are ideals of R and both R/K, and R/K₂ are commutative, then R/(K₁ K₂) is also commutative
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter6: More On Rings
Section6.3: The Characteristic Of A Ring
Problem 4E
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