Integer Reciprocal Space with Zero is not Extremally Disconnected

Theorem
Let $A \subseteq \R$ be the set of all points on $\R$ defined as:
 * $A := \left\{{0}\right\} \cup \left\{{\dfrac 1 n : n \in \Z_{>0}}\right\}$

Let $\left({A, \tau_d}\right)$ be the integer reciprocal space with zero under the usual (Euclidean) topology.

Then $A$ is not extremally disconnected.