| appearance as argument number 1 |
|
| No TPTP formula. May not be expressible in strict first order. | Transportation.kif 2080-2083 | |
| No TPTP formula. May not be expressible in strict first order. | Transportation.kif 2079-2079 | Railway terminal is a subclass of transit terminal |
| appearance as argument number 2 |
|
|
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 48680-48680 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 48679-48679 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 48678-48678 |
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Sigma version 3.0 is open source software produced by Articulate Software and its partners