Let U is an ideal of R and a set [R : U] = {x ∈ R : rx ∈ U ∀ r ∈
R}. Then prove that [R : U] is an ideal of R containing U.
Mathbot Says...
I wasn't able to parse your question, but the HE.NET team is hard at work making me smarter.
Let U is an ideal of R and a set [R : U] = {x ∈ R : rx ∈ U ∀ r ∈
R}. Then prove that [R : U] is an ideal of R containing U.
I wasn't able to parse your question, but the HE.NET team is hard at work making me smarter.