| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | Cars.kif 5076-5076 | Electric light fixture is a subclass of electric device |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 5075-5075 | Electric light fixture is a subclass of light fixture |
| appearance as argument number 2 |
|
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| No TPTP formula. May not be expressible in strict first order. | Cars.kif 5080-5080 | Fluorescent light fixture is a subclass of electric light fixture |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 5078-5078 | Incandescent light fixture is a subclass of electric light fixture |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 5079-5079 | LED light fixture is a subclass of electric light fixture |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 5082-5082 | Light bulb is a subclass of electric light fixture |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 64806-64806 |
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Sigma version 3.0 is open source software produced by Articulate Software and its partners