theorem instCoePersonObject._proof_1
theorem instCoePersonObject._proof_1: ∀ (v : nwtxrh89.Person), d4qbfhxh.Object.Is (Subtype.val v)
theorem instCoePersonObject._proof_1
theorem instCoePersonObject._proof_1: ∀ (v : nwtxrh89.Person), d4qbfhxh.Object.Is (Subtype.val v)