Let R be a ring with no zero divisors such that for all r,s R there
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Let R be a ring with no zero divisors such that for all r,s ϵ R there exist a, b ϵ R, not both zero, with ar + bs = 0.
(a) If R = K⊕L (module direct sum), then K = 0 or L = 0.
(b) If R has an identity, then R has the invariant dimension property.
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a Suppose R KL where K and L are nonzero subrings of R Then we can choose nonzero elements k K and l ...View the full answer
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Related Book For
Algebra Graduate Texts In Mathematics 73
ISBN: 9780387905181
8th Edition
Authors: Thomas W. Hungerford
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