No TPTP formula. May not be expressible in strict first order. | Merge.kif 2176-2176 | Single valued relation is a subclass of relation |
No TPTP formula. May not be expressible in strict first order. | Merge.kif 2177-2177 | Single valued relation is a subclass of inheritable relation |
No TPTP formula. May not be expressible in strict first order. | Merge.kif 3350-3350 | Function is a subclass of single valued relation |