14. Suppose the integral domain (R,+, ) is imbedded in the field (F',+'. ), say (R,+, ) (R',+',') under the mapping f. Define the set K by {a'.' (8')- | a', b' E R'; &' # 0}. K = Prove (1) (K,+',) is a subfield of (F,+',) and (2) (K, +', ) is isomorphic to the field of quotients of (R,+,). [Hint: For (2), consider the function g defined by g(la, b)) = f(a) ' f(b) -1 where a, bER, b = 0.] %3D
14. Suppose the integral domain (R,+, ) is imbedded in the field (F',+'. ), say (R,+, ) (R',+',') under the mapping f. Define the set K by {a'.' (8')- | a', b' E R'; &' # 0}. K = Prove (1) (K,+',) is a subfield of (F,+',) and (2) (K, +', ) is isomorphic to the field of quotients of (R,+,). [Hint: For (2), consider the function g defined by g(la, b)) = f(a) ' f(b) -1 where a, bER, b = 0.] %3D
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 18E: [Type here]
18. Prove that only idempotent elements in an integral domain are and .
[Type here]
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