| Necessity(必要性) | |
| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | chinese_format.kif 3891-3892 | |
| No TPTP formula. May not be expressible in strict first order. | Merge.kif 17413-17414 | |
| No TPTP formula. May not be expressible in strict first order. | Merge.kif 17412-17412 | 必要性 是 真势属性 的 instance |
| appearance as argument number 2 |
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|
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 40059-40059 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 40058-40058 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 40057-40057 |
| antecedent |
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| No TPTP formula. May not be expressible in strict first order. | Merge.kif 17416-17418 | 公式 的声明 has 必要性 的语气 若且唯若 那个 公式 的声明 doesn't have 可能性 的语气 |
| No TPTP formula. May not be expressible in strict first order. | Dining.kif 772-795 |
|
| No TPTP formula. May not be expressible in strict first order. | Merge.kif 17420-17422 |
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