| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 23459-23467 | |
| No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 23458-23458 | Signalling est une sous-classe de guider |
| appearance as argument number 2 |
|
|
| No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 2628-2628 | ElectricalSignalling est une sous-classe de Signalling |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 53014-53014 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 53013-53013 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 53012-53012 |
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Sigma version 3.0 is open source software produced by Articulate Software and its partners