\begin{definition}[Definition:Scalar/Module]
Let $\struct {G, +_G, \circ}_R$ be a module, where:
:$\struct {G, +_G}$ is an abelian group
:$\struct {R, +_R, \times_R}$ is the scalar ring of $\struct {G, +_G, \circ}_R$.
The elements of the scalar ring $\struct {R, +_R, \times_R}$ are called '''scalars'''.
\end{definition}