theorem instCoeThreeDimensionalSpatialRegionSpatialRegion._proof_1
theorem instCoeThreeDimensionalSpatialRegionSpatialRegion._proof_1: ∀ (v : qszr71sj.ThreeDimensionalSpatialRegion), qszr71sj.SpatialRegion.Is (Subtype.val v)
theorem instCoeThreeDimensionalSpatialRegionSpatialRegion._proof_1
theorem instCoeThreeDimensionalSpatialRegionSpatialRegion._proof_1: ∀ (v : qszr71sj.ThreeDimensionalSpatialRegion), qszr71sj.SpatialRegion.Is (Subtype.val v)