| NullSet(null set) | | null_set, null_space |
| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | chinese_format.kif 2310-2310 | |
| No TPTP formula. May not be expressible in strict first order. | Merge.kif 5518-5518 | |
| No TPTP formula. May not be expressible in strict first order. | japanese_format.kif 982-982 | |
| No TPTP formula. May not be expressible in strict first order. | Merge.kif 5516-5516 | Null set is a subclass of set |
| appearance as argument number 2 |
|
|
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 41427-41427 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 41426-41426 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 41425-41425 |
| antecedent |
|
|
| No TPTP formula. May not be expressible in strict first order. | Merge.kif 5520-5524 |
|
|
|