theorem BFO.MaterialEntityOrSite.site.sizeOf_spec
theorem BFO.MaterialEntityOrSite.site.sizeOf_spec: ∀ (a : j12bzjgj.BFO.Site), sizeOf (j12bzjgj.BFO.MaterialEntityOrSite.site a) = 1 + sizeOf a
theorem BFO.MaterialEntityOrSite.site.sizeOf_spec
theorem BFO.MaterialEntityOrSite.site.sizeOf_spec: ∀ (a : j12bzjgj.BFO.Site), sizeOf (j12bzjgj.BFO.MaterialEntityOrSite.site a) = 1 + sizeOf a