Torsion-free module
= Torsion-free module
{wiki}
A module $M$ over an integral domain $R$ is torsion-free when $rm=0$ with $0\ne r\in R$ implies $m=0$.
= Torsion-free module
{wiki}
A module $M$ over an integral domain $R$ is torsion-free when $rm=0$ with $0\ne r\in R$ implies $m=0$.