A submodule 
of a module 
such that for any proper submodule 
of 
, the submodule generated by
is not the entire module 
. 
is also called superfluous submodule.
Small Submodule
See also
Large Submodule, SubmoduleThis entry contributed by Margherita Barile
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Cite this as:
Weisstein, Eric W., with contributions by Margherita Barile. "Small Submodule." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/SmallSubmodule.html