theorem BFO.instCoeContinuantFiatBoundaryImmaterialEntity._proof_1
theorem BFO.instCoeContinuantFiatBoundaryImmaterialEntity._proof_1: ∀ (v : j12bzjgj.BFO.ContinuantFiatBoundary), j12bzjgj.BFO.ImmaterialEntity.Is (Subtype.val v)
theorem BFO.instCoeContinuantFiatBoundaryImmaterialEntity._proof_1
theorem BFO.instCoeContinuantFiatBoundaryImmaterialEntity._proof_1: ∀ (v : j12bzjgj.BFO.ContinuantFiatBoundary), j12bzjgj.BFO.ImmaterialEntity.Is (Subtype.val v)