- It is interesting to know that all finite abelian group is a direct sum of cyclic subgroups and the orders of these cyclic subgroups are uniquely determined by the group.
- The Proof for Fundamental theorem of finite Abelian groups is little confusing, i did not understand the invariant factors, why it is two numbers in some cases and it is just one number as shown in one of the example in page 258 of the text book.
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