Wall metric
= Wall metric
{title2=$d_{\mathcal W}$}
The wall metric is
$$
d_{\mathcal W}(x,y)=\#\{W\in\mathcal W:W\text{ separates }x\text{ and }y\}.
$$
= Wall metric
{title2=$d_{\mathcal W}$}
The wall metric is
$$
d_{\mathcal W}(x,y)=\#\{W\in\mathcal W:W\text{ separates }x\text{ and }y\}.
$$