and t=t+1}. nts in K? List all the elements in K. a field? e)rK is a field, draw two tables to prove it. If K is not a field, why?

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 22E: Prove that if R and S are fields, then the direct sum RS is not a field. [Type here][Type here]
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Let K (a+bt a, bE Z2, 1ER and t=t+1}.
a) How many elements in K? List all the elements in K.
b) Is K a field?
e)rK is a field, draw two tables to prove it. If K is not a field, why?
Transcribed Image Text:Let K (a+bt a, bE Z2, 1ER and t=t+1}. a) How many elements in K? List all the elements in K. b) Is K a field? e)rK is a field, draw two tables to prove it. If K is not a field, why?
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