| appearance as argument number 1 |
|
| No TPTP formula. May not be expressible in strict first order. | Languages.kif 451-461 | |
| No TPTP formula. May not be expressible in strict first order. | Languages.kif 450-450 | 捷克手语 是 聋人手语 的 instance |
| appearance as argument number 2 |
|
|
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 18336-18336 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 18335-18335 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 18334-18334 |
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Sigma version 3.0 is open source software produced by Articulate Software and its partners