theorem instCoeDepTypeTwoDimensionalSpatialRegionOfIs._proof_1
theorem instCoeDepTypeTwoDimensionalSpatialRegionOfIs._proof_1: ∀ (x : Type) [d4qbfhxh.TwoDimensionalSpatialRegion.Is x], d4qbfhxh.TwoDimensionalSpatialRegion.Is x
theorem instCoeDepTypeTwoDimensionalSpatialRegionOfIs._proof_1
theorem instCoeDepTypeTwoDimensionalSpatialRegionOfIs._proof_1: ∀ (x : Type) [d4qbfhxh.TwoDimensionalSpatialRegion.Is x], d4qbfhxh.TwoDimensionalSpatialRegion.Is x