theorem instCoeDispositionRealizableEntity._proof_1
theorem instCoeDispositionRealizableEntity._proof_1: ∀ (v : ta3nj1a4.Disposition), ta3nj1a4.RealizableEntity.Is (Subtype.val v)
theorem instCoeDispositionRealizableEntity._proof_1
theorem instCoeDispositionRealizableEntity._proof_1: ∀ (v : ta3nj1a4.Disposition), ta3nj1a4.RealizableEntity.Is (Subtype.val v)