No TPTP formula. May not be expressible in strict first order. | ComputerInput.kif 742-742 | ExternalDiskDrive 是 DiskDrive 的 subclass |
No TPTP formula. May not be expressible in strict first order. | ComputerInput.kif 748-748 | ExternalHardDiskDrive 是 ExternalDiskDrive 的 subclass |