| Hour(hour) | | closing_time, hour, hourly, none, o'clock, time_of_day |
| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | chinese_format.kif 2816-2816 | |
| No TPTP formula. May not be expressible in strict first order. | Merge.kif 9344-9344 | |
| No TPTP formula. May not be expressible in strict first order. | japanese_format.kif 1557-1557 | |
| No TPTP formula. May not be expressible in strict first order. | Merge.kif 9342-9342 | Hour is internally related to hour duration |
| No TPTP formula. May not be expressible in strict first order. | Merge.kif 9341-9341 | Hour is internally related to hour |
| No TPTP formula. May not be expressible in strict first order. | Merge.kif 9340-9340 | Hour is a subclass of time interval |
| appearance as argument number 2 |
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| No TPTP formula. May not be expressible in strict first order. | Merge.kif 8615-8615 | The values returned by hour are subclasses of hour |
| No TPTP formula. May not be expressible in strict first order. | chinese_format.kif 1298-1298 | |
| No TPTP formula. May not be expressible in strict first order. | english_format.kif 1813-1813 | |
| No TPTP formula. May not be expressible in strict first order. | french_format.kif 976-976 | |
| No TPTP formula. May not be expressible in strict first order. | terms-hindi.txt 511-511 | |
| No TPTP formula. May not be expressible in strict first order. | terms-it.txt 515-515 | |
| No TPTP formula. May not be expressible in strict first order. | japanese_format.kif 2660-2660 | |
| No TPTP formula. May not be expressible in strict first order. | portuguese_format.kif 928-928 | |
| No TPTP formula. May not be expressible in strict first order. | terms-cb.txt 517-517 | |
| No TPTP formula. May not be expressible in strict first order. | terms-cz.txt 551-551 | |
| No TPTP formula. May not be expressible in strict first order. | relations-ro.kif 997-997 | |
| No TPTP formula. May not be expressible in strict first order. | terms-tg.txt 516-516 |
| appearance as argument number 3 |
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| No TPTP formula. May not be expressible in strict first order. | Merge.kif 8640-8640 | The number 2 argument of minute is a subclass of hour |
| antecedent |
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| No TPTP formula. May not be expressible in strict first order. | Merge.kif 9346-9348 |
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| No TPTP formula. May not be expressible in strict first order. | Merge.kif 9477-9479 |
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| consequent |
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| No TPTP formula. May not be expressible in strict first order. | Merge.kif 9473-9475 |
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