theorem instTemporalInstantIsToParent
theorem instTemporalInstantIsToParent: ∀ (x : Type) [TemporalInstant.Is x], ZeroDimensionalTemporalRegion.Is x
theorem instTemporalInstantIsToParent
theorem instTemporalInstantIsToParent: ∀ (x : Type) [TemporalInstant.Is x], ZeroDimensionalTemporalRegion.Is x