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No TPTP formula. May not be expressible in strict first order. Mid-level-ontology.kif 2565-2565 Power source is a subclass of device
No TPTP formula. May not be expressible in strict first order. Mid-level-ontology.kif 2575-2575 DC power source is a subclass of power source
No TPTP formula. May not be expressible in strict first order. Mid-level-ontology.kif 26355-26355 Ac power source is a subclass of power source
No TPTP formula. May not be expressible in strict first order. engineering.kif 873-873 Single phase power source is a subclass of power source
No TPTP formula. May not be expressible in strict first order. engineering.kif 878-878 Three phase power source is a subclass of power source


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