Definition:Section of Étalé Space

Definition
Let $T = \left({S, \tau}\right)$ be a topological space.

Let $\mathcal F$ be a presheaf of sets on $T$.

Let $\left({\operatorname{\acute Et} \left({\mathcal F}\right), \pi}\right)$ be its étalé space.

Let $U \subseteq S$ be open.

Also see

 * Equivalence of Definitions of Section of Étalé Space