The textual description of the space $G$ is as follows:
$G(\mathbb{R}^2)$ is the Banach space composed of the distributions $f$ which can be written as $f = \mathrm{div}(g)$, where $\mathrm{div}:Y\rightarrow X$.
Later on in the paper, a discrete version of $G$ is given with the following definition:
$G_d = \{ v \in X / \exists g \in Y \;\; \mathrm{s.t.} \;\; v = \mathrm{div}(g) \}$
Am I correct in reading the $/$ symbol as "such that"? I am only familiar with $/$ to indicate a quotient space.Or is the above a quotient space that I am missing?