theorem instCoeProcessBoundaryOccurrent._proof_1
theorem instCoeProcessBoundaryOccurrent._proof_1: ∀ (v : d4qbfhxh.ProcessBoundary), d4qbfhxh.Occurrent.Is (Subtype.val v)
theorem instCoeProcessBoundaryOccurrent._proof_1
theorem instCoeProcessBoundaryOccurrent._proof_1: ∀ (v : d4qbfhxh.ProcessBoundary), d4qbfhxh.Occurrent.Is (Subtype.val v)