theorem BFO.instCoeSpatiotemporalRegionOccurrent._proof_1
theorem BFO.instCoeSpatiotemporalRegionOccurrent._proof_1: ∀ (v : j12bzjgj.BFO.SpatiotemporalRegion), j12bzjgj.BFO.Occurrent.Is (Subtype.val v)
theorem BFO.instCoeSpatiotemporalRegionOccurrent._proof_1
theorem BFO.instCoeSpatiotemporalRegionOccurrent._proof_1: ∀ (v : j12bzjgj.BFO.SpatiotemporalRegion), j12bzjgj.BFO.Occurrent.Is (Subtype.val v)