Definition:Graph (Graph Theory)/Size

Definition
Let $$G = \left({V, E}\right)$$ be a graph.

The size of $$G$$ is the count of its edges.

That is, the size of a graph $$G = \left({V, E}\right)$$ is $$\left \vert {E}\right \vert$$.

A size zero graph is called an edgeless graph.