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I am reading Paul E. Bland's book, "Rings and Their Modules".

I am focused on Section 4.3: Modules Over Principal Ideal Domains ... and I need some help in order to formulate a proof of Proposition 4.3.5 Part (iii)... ...

Proposition 4.3.5 reads as follows:https://www.physicsforums.com/attachments/8308

https://www.physicsforums.com/attachments/8309

Bland does not prove part (iii) of the above proof ...

Can someone please help me to formulate a rigorous proof ...

Peter

I am focused on Section 4.3: Modules Over Principal Ideal Domains ... and I need some help in order to formulate a proof of Proposition 4.3.5 Part (iii)... ...

Proposition 4.3.5 reads as follows:https://www.physicsforums.com/attachments/8308

https://www.physicsforums.com/attachments/8309

Bland does not prove part (iii) of the above proof ...

Can someone please help me to formulate a rigorous proof ...

Peter

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