Does R/A ring if A is not ideal ? Give an example and explain your answer.
Added by Brandon H.
Step 1
R/A is the set of all cosets of A in R, where A is an ideal of R. In other words, R/A is the set of all elements of R that are equivalent to A modulo A. Now, if A is not an ideal of R, then it is not closed under multiplication by elements of R. This means that Show more…
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