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| No TPTP formula. May not be expressible in strict first order. | ComputingBrands.kif 654-654 | Apple iPhone is a subclass of iPhone |
| No TPTP formula. May not be expressible in strict first order. | ComputingBrands.kif 639-639 | |
| No TPTP formula. May not be expressible in strict first order. | ComputingBrands.kif 638-638 | |
| No TPTP formula. May not be expressible in strict first order. | ComputingBrands.kif 637-637 | |
| No TPTP formula. May not be expressible in strict first order. | ComputingBrands.kif 640-640 |
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Sigma web home Suggested Upper Merged Ontology (SUMO) web home
Sigma version 3.0 is open source software produced by Articulate Software and its partners