| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | ComputerInput.kif 784-784 | |
| No TPTP formula. May not be expressible in strict first order. | ComputerInput.kif 783-783 | Blu ray drive is a subclass of optical disc drive |
| appearance as argument number 2 |
|
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| No TPTP formula. May not be expressible in strict first order. | ComputerInput.kif 785-785 | Blu ray drive reads or writes blu ray disc |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 64548-64548 |
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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