theorem BFO.MaterialEntityOrSite.site.inj
theorem BFO.MaterialEntityOrSite.site.inj: ∀ {a a_1 : hz46pbq2.BFO.Site}, hz46pbq2.BFO.MaterialEntityOrSite.site a = hz46pbq2.BFO.MaterialEntityOrSite.site a_1 → a = a_1
theorem BFO.MaterialEntityOrSite.site.inj
theorem BFO.MaterialEntityOrSite.site.inj: ∀ {a a_1 : hz46pbq2.BFO.Site}, hz46pbq2.BFO.MaterialEntityOrSite.site a = hz46pbq2.BFO.MaterialEntityOrSite.site a_1 → a = a_1