Abstract Algebra Investigation 20 Ring Homomorphisms and Ideals In Investigation & , we introduced the notion of a homomorphism between groups .... | Course Hero
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For a ring homomorphism, $\phi\left ( x \right )=0$ or $\phi\left ( x \right )=x.$ - Mathematics Stack Exchange
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The Quotient Ring by an Ideal of a Ring of Some Matrices is Isomorphic to Q | Problems in Mathematics
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