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3. Suppose R is a PID and M is a cyclic R-module of order r E R, ie., M RI (r). Show that if N is a submodule of M then N i
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p>庶.thane İS a 1-1 fR : Siresa orelie modle 厂く幻. arler

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3. Suppose R is a PID and M is a cyclic R-module of 'order' r E R, ie., M RI (r). Show that if N ...
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