theorem instCoeSiteImmaterialEntity._proof_1
theorem instCoeSiteImmaterialEntity._proof_1: ∀ (v : d4qbfhxh.Site), d4qbfhxh.ImmaterialEntity.Is (Subtype.val v)
theorem instCoeSiteImmaterialEntity._proof_1
theorem instCoeSiteImmaterialEntity._proof_1: ∀ (v : d4qbfhxh.Site), d4qbfhxh.ImmaterialEntity.Is (Subtype.val v)