theorem instCoeSiteImmaterialEntity._proof_1
theorem instCoeSiteImmaterialEntity._proof_1: ∀ (v : qszr71sj.Site), qszr71sj.ImmaterialEntity.Is (Subtype.val v)
theorem instCoeSiteImmaterialEntity._proof_1
theorem instCoeSiteImmaterialEntity._proof_1: ∀ (v : qszr71sj.Site), qszr71sj.ImmaterialEntity.Is (Subtype.val v)