| TruthValue(truth value) | | cogency, rigor, rigour, validity |
| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | chinese_format.kif 3794-3795 | |
| No TPTP formula. May not be expressible in strict first order. | Merge.kif 15835-15836 | |
| No TPTP formula. May not be expressible in strict first order. | Merge.kif 15834-15834 | Truth value is a subclass of relational attribute |
| appearance as argument number 2 |
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| No TPTP formula. May not be expressible in strict first order. | Merge.kif 15849-15849 | False is an instance of truth value |
| No TPTP formula. May not be expressible in strict first order. | Merge.kif 15846-15846 | True is an instance of truth value |
| No TPTP formula. May not be expressible in strict first order. | chinese_format.kif 1235-1235 | |
| No TPTP formula. May not be expressible in strict first order. | english_format.kif 1696-1696 |
| appearance as argument number 3 |
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| No TPTP formula. May not be expressible in strict first order. | Merge.kif 15856-15856 | The number 2 argument of truth is an instance of truth value |
| antecedent |
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| No TPTP formula. May not be expressible in strict first order. | Merge.kif 15838-15844 |
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