theorem BFO.instCoeDepTypeThreeDimensionalSpatialRegionOfIs._proof_1
theorem BFO.instCoeDepTypeThreeDimensionalSpatialRegionOfIs._proof_1: ∀ (x : Type) [hz46pbq2.BFO.ThreeDimensionalSpatialRegion.Is x], hz46pbq2.BFO.ThreeDimensionalSpatialRegion.Is x