theorem instCoeDispositionRealizableEntity._proof_1
theorem instCoeDispositionRealizableEntity._proof_1: ∀ (v : qszr71sj.Disposition), qszr71sj.RealizableEntity.Is (Subtype.val v)
theorem instCoeDispositionRealizableEntity._proof_1
theorem instCoeDispositionRealizableEntity._proof_1: ∀ (v : qszr71sj.Disposition), qszr71sj.RealizableEntity.Is (Subtype.val v)