No TPTP formula. May not be expressible in strict first order. | ComputerInput.kif 156-156 | ComputerScreen 是 ComputerDisplay 的 subclass |
No TPTP formula. May not be expressible in strict first order. | ComputerInput.kif 438-438 | ComputerTouchscreen 是 ComputerScreen 的 subclass |