| appearance as argument number 1 |
|
| No TPTP formula. May not be expressible in strict first order. | ComputingBrands.kif 694-694 | device OS Apple iPhone and IOS 3 |
| No TPTP formula. May not be expressible in strict first order. | ComputingBrands.kif 644-644 | 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 669-669 |
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Sigma version 3.0 is open source software produced by Articulate Software and its partners