Theorem 12. Let R is a commutative ring and r e R,fe Hom (M, M'), then rfe. R M, M') defined by (rf) (x) = rf (x) for all x M and with this scalar multiplication the a oup Hom (M, M') is an R-module. R
Theorem 12. Let R is a commutative ring and r e R,fe Hom (M, M'), then rfe. R M, M') defined by (rf) (x) = rf (x) for all x M and with this scalar multiplication the a oup Hom (M, M') is an R-module. R
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 5E: Examples 5 and 6 of Section 5.1 showed that P(U) is a commutative ring with unity. In Exercises 4...
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