Definition 5.4.1 (Small). Let $(X, \fU)$ be a uniform space, $V \in \fU$, and $A \subset X$, then $A$ is $V$-small if $A \times A \subset V$.
Definition 5.4.1 (Small). Let $(X, \fU)$ be a uniform space, $V \in \fU$, and $A \subset X$, then $A$ is $V$-small if $A \times A \subset V$.