A module over a ring that is contained in and has the same addition as another module over the same ring.
Submodule
See also
Large Submodule, Module, Proper Submodule, Small SubmoduleExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Submodule." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Submodule.html