A finitely generated module is projective if and only if it is a direct summand of...

A finitely generated module is projective if and only if it is a direct summand of a finitely generated free module. I am having trouble grasping the "finitely generated" part.

Expert Solution

P is R module then P is projective iff P is isomorphic to direct summand of free R module.

Colby Messinger answered 2 years ago

a. Give an example of a finitely generated module over an integral domain which is not...

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what are projective techniques and how can they be used profitably

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