| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | Economy.kif 1715-1715 | Coal products manufacturing is a subattribute of coal industry |
| No TPTP formula. May not be expressible in strict first order. | Economy.kif 1719-1719 | Coal products manufacturing is a subattribute of petroleum and coal products manufacturing |
| appearance as argument number 2 |
|
|
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 15348-15348 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 15347-15347 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 15346-15346 |
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Sigma version 3.0 is open source software produced by Articulate Software and its partners