Let R be a ring and S be a subring of R with OS, OR being the zero elements in S, R respectively. Prove that (i) R has a unique zero element| (ii) Os = OR

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 37E: 37. Let and be elements in a ring. If is a zero divisor, prove that either or is a zero...
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4. Let R be a ring and S be a subring of R with OS, OR being the zero elements S, R respectively.
Prove that
(i) R has a unique zero element
(ii) Os =
= OR
Transcribed Image Text:4. Let R be a ring and S be a subring of R with OS, OR being the zero elements S, R respectively. Prove that (i) R has a unique zero element (ii) Os = = OR
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