of a set $A$ in a vector space $E$
The intersection $M$ of all subspaces containing $A$. The set $M$ is also called the subspace generated by $A$.
This is also called the linear envelope. The closure of the linear hull of a set $A$ is called the linear closure of this set.
Linear hull. Encyclopedia of Mathematics. URL: http://www.encyclopediaofmath.org/index.php?title=Linear_hull&oldid=32432