Eventuality in a Net

Let f : D X : 𝑓 𝐷 𝑋 f:D\to X be a Net in a type X 𝑋 X , and let P : X Ω : 𝑃 𝑋 Ω P:X\to\Omega be a predicate on X 𝑋 X . We say that P 𝑃 P eventually holds on the net f 𝑓 f if

This is a topological manifestation of an Eventuality Modality, where we view the predicate P : X Ω : 𝑃 𝑋 Ω P:X\to\Omega as an X 𝑋 X -parameterized proposition, and the net f 𝑓 f as a particular timeline.

Properties