No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 9066-9066 | Space region is a subclass of region |
No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 9027-9027 | Atmospheric region is a subclass of space region |
No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 9072-9072 | Outer space region is a subclass of space region |