s] Assume that is an operation on S with identity element e, and that x * (y * 2) = (x * z2) * y for all a, y, z E S. Prove that * is commutative and associative.

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter5: Rings, Integral Domains, And Fields
Section5.2: Integral Domains And Fields
Problem 17E: If e is the unity in an integral domain D, prove that (e)a=a for all aD. [Type here][Type here]
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-s] Assume that * is an operation on S with identity element e, and that
x * (y * z) = (x * z) * y
for all x, y, z E S. Prove that is commutative and associative.
Transcribed Image Text:-s] Assume that * is an operation on S with identity element e, and that x * (y * z) = (x * z) * y for all x, y, z E S. Prove that is commutative and associative.
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