| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | ComputingBrands.kif 712-712 | device OS Apple iPhone and IOS 10 |
| No TPTP formula. May not be expressible in strict first order. | ComputingBrands.kif 656-656 | Apple iPhone is a subclass of iPhone |
| appearance as argument number 2 |
|
|
| No TPTP formula. May not be expressible in strict first order. | ComputingBrands.kif 681-681 |
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Sigma version 3.0 is open source software produced by Articulate Software and its partners