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I am reading T. Y. Lam's book, "A First Course in Noncommutative Rings" (Second Edition) and am currently focussed on Section 1:Basic Terminology and Examples ...
I need help with an aspect of Example 1.14 ... ...
Example 1.14 reads as follows: https://www.physicsforums.com/attachments/5984
https://www.physicsforums.com/attachments/5985I cannot follow why the results in Table 1.16 follow ...
For example, according to Table 1.16 ...
$$mr = 0$$ for all $$m \in M$$ and $$r \in R$$ ... but why
Similarly I don't follow the other entries in the Table ...
Can someone please help ...
Peter
I need help with an aspect of Example 1.14 ... ...
Example 1.14 reads as follows: https://www.physicsforums.com/attachments/5984
https://www.physicsforums.com/attachments/5985I cannot follow why the results in Table 1.16 follow ...
For example, according to Table 1.16 ...
$$mr = 0$$ for all $$m \in M$$ and $$r \in R$$ ... but why
Similarly I don't follow the other entries in the Table ...
Can someone please help ...
Peter