theorem instCoeDepTypeThreeDimensionalSpatialRegionOfIs._proof_1
theorem instCoeDepTypeThreeDimensionalSpatialRegionOfIs._proof_1: ∀ (x : Type) [d4qbfhxh.ThreeDimensionalSpatialRegion.Is x], d4qbfhxh.ThreeDimensionalSpatialRegion.Is x
theorem instCoeDepTypeThreeDimensionalSpatialRegionOfIs._proof_1
theorem instCoeDepTypeThreeDimensionalSpatialRegionOfIs._proof_1: ∀ (x : Type) [d4qbfhxh.ThreeDimensionalSpatialRegion.Is x], d4qbfhxh.ThreeDimensionalSpatialRegion.Is x