| (=> (instance ?C ElectricalConductor) (exists (?S) (and (subclass ?S ConductorSubstance) (material ?S ?C)))) |
engineering.kif 826-831 |
|
| (subclass ConductorSubstance Substance) | engineering.kif 1281-1281 | ConductorSubstance est une sous-classe de substance |
| (subclass Electrolyte ConductorSubstance) | Cars.kif 2495-2495 | Electrolyte est une sous-classe de ConductorSubstance |
|
|