| appearance as argument number 1 |
|
| No TPTP formula. May not be expressible in strict first order. | Sports.kif 102-102 | |
| No TPTP formula. May not be expressible in strict first order. | Sports.kif 101-101 | Mountain biking is a subclass of cycling |
| appearance as argument number 2 |
|
|
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 65199-65199 |
|
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Sigma version 3.0 is open source software produced by Articulate Software and its partners