| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | Languages.kif 1300-1303 | |
| No TPTP formula. May not be expressible in strict first order. | Languages.kif 1299-1299 | Yiddish sign language is an instance of deaf sign language |
| appearance as argument number 2 |
|
|
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 63859-63859 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 63858-63858 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 63857-63857 |
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Sigma version 3.0 is open source software produced by Articulate Software and its partners