[引用][C] Embedding cyclic and torsion-free modules in free modules
JL Gómez Pardo - Archiv der Mathematik, 1985 - Springer
1. Introduction. Let R be a ring (associative and with identity). It is easy to see that every left
ideal of R is the (left) annihilator of a finite subset of R if and only if every cyclic left R-module …
ideal of R is the (left) annihilator of a finite subset of R if and only if every cyclic left R-module …