No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 9067-9067 | Space region is a subclass of region |
No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 9028-9028 | Atmospheric region is a subclass of space region |
No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 9073-9073 | Outer space region is a subclass of space region |