Qs: (A) Let R be a ring with identity. Define g: Z → Z by g(x) = x. 1, Vx € Z. Is g a homorphism? What's ker(g)?

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 5E
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Q₁: (A) Let R be a ring with identity. Define g: Z → Z by g(x) = x. 1, Vx € Z. Is
g a homorphism? What's ker(g)?
Transcribed Image Text:Q₁: (A) Let R be a ring with identity. Define g: Z → Z by g(x) = x. 1, Vx € Z. Is g a homorphism? What's ker(g)?
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