| appearance as argument number 1 |
|
| No TPTP formula. May not be expressible in strict first order. | naics.kif 684-687 | |
| No TPTP formula. May not be expressible in strict first order. | naics.kif 682-682 | 子屬性 煙煤和褐煤露天採礦 and 採煤 |
| appearance as argument number 2 |
|
|
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 11237-11237 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 11236-11236 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 11235-11235 |
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Sigma version 3.0 is open source software produced by Articulate Software and its partners