\begin{definition}[Definition:Scalar Division/Vector Quantity]
Let $\mathbf a$ be a vector quantity.
Let $m$ be a scalar quantity.
The operation of scalar division by $m$ of $\mathbf a$ is defined as:
:$\dfrac {\mathbf a} m = \dfrac 1 m \size {\mathbf a}$
that is, scalar multiplication by $\dfrac 1 m$ of $\mathbf a$.
\end{definition}