No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 29551-29551 | TabletComputer 是 PortableComputer 的 subclass |
No TPTP formula. May not be expressible in strict first order. | ComputingBrands.kif 612-612 | IPad 是 TabletComputer 的 subclass |