| Identifier(identifier) | | identifier |
| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 26197-26201 | |
| No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 26196-26196 | Identifier is a subclass of name |
| appearance as argument number 2 |
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| No TPTP formula. May not be expressible in strict first order. | Media.kif 3028-3028 | Employee number is a subclass of identifier |
| No TPTP formula. May not be expressible in strict first order. | Media.kif 2937-2937 | Formal identifier is a subclass of identifier |
| No TPTP formula. May not be expressible in strict first order. | Media.kif 3022-3022 | Party ID is a subclass of identifier |
| No TPTP formula. May not be expressible in strict first order. | Media.kif 3005-3005 | Product iD is a subclass of identifier |
| No TPTP formula. May not be expressible in strict first order. | Media.kif 3003-3003 | Proprietary identifier is a subclass of identifier |
| No TPTP formula. May not be expressible in strict first order. | Media.kif 2935-2935 | Standard identifier is a subclass of identifier |
| No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 26202-26202 | Standard identifier is a subclass of identifier |
| appearance as argument number 3 |
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| No TPTP formula. May not be expressible in strict first order. | UXExperimentalTerms.kif 732-732 | The number 1 argument of browser identifier string is an instance of identifier |
| No TPTP formula. May not be expressible in strict first order. | UXExperimentalTerms.kif 163-163 | The number 1 argument of category identifier string is an instance of identifier |
| No TPTP formula. May not be expressible in strict first order. | UXExperimentalTerms.kif 4015-4015 | The number 1 argument of experiment identifier string is an instance of identifier |
| No TPTP formula. May not be expressible in strict first order. | UXExperimentalTerms.kif 1089-1089 | The number 1 argument of user identifier string is an instance of identifier |
| consequent |
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| No TPTP formula. May not be expressible in strict first order. | UXExperimentalTerms.kif 1105-1110 |
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| No TPTP formula. May not be expressible in strict first order. | UXExperimentalTerms.kif 1209-1216 |
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