Let F/K be a field extension and R be a ring such that KCRCF. Prove that if every element of R is algebraic over K, then R is a field.

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter5: Rings, Integral Domains, And Fields
Section5.1: Definition Of A Ring
Problem 49E: An element a of a ring R is called nilpotent if an=0 for some positive integer n. Prove that the set...
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Field extensions 

SPLITTING FIELDS
459
Let F/K be a field extension and R be a ring such that KCRCF.
Prove that if every element of R is algebraic over K, then R is a field.
Transcribed Image Text:SPLITTING FIELDS 459 Let F/K be a field extension and R be a ring such that KCRCF. Prove that if every element of R is algebraic over K, then R is a field.
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