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April(April)
|  | Apr, April |
| appearance as argument number 1 |
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| (successorClass April May) | Merge.kif 9229-9229 | May is the successor class of April. |
| (subclass April Month) | Merge.kif 9302-9302 | April is a subclass of month |
| (documentation April EnglishLanguage "The Class of all Months which are April.") | Merge.kif 9304-9304 | April is a subclass of month |
| (externalImage April "http://upload.wikimedia.org/wikipedia/commons/6/60/ Crystal_128_date.png") | pictureList.kif 4857-4857 | April is a subclass of month |
| (externalImage April "http://upload.wikimedia.org/wikipedia/commons/4/42/ Mnwetlandapril.jpg") | pictureList.kif 4958-4958 | April is a subclass of month |
| appearance as argument number 2 |
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| (successorClass March April) | Merge.kif 9228-9228 | April is the successor class of March. |
| (termFormat EnglishLanguage April "April") | english_format.kif 1781-1781 | April is the successor class of March. |
| antecedent |
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| (=> (and (instance ?MONTH1 (MonthFn March ?YEAR)) (instance ?MONTH2 (MonthFn April ?YEAR))) (meetsTemporally ?MONTH1 ?MONTH2)) |
Merge.kif 9296-9300 | If X is an instance of the month March and Y is an instance of the month April, then X meets Y |
| (=> (instance ?MONTH April) (duration ?MONTH (MeasureFn 30 DayDuration))) |
Merge.kif 9306-9308 | If X is an instance of April, then duration of X is 30 day duration(s) |
| (=> (and (instance ?MONTH1 (MonthFn April ?YEAR)) (instance ?MONTH2 (MonthFn May ?YEAR))) (meetsTemporally ?MONTH1 ?MONTH2)) |
Merge.kif 9310-9314 | If X is an instance of the month April and Y is an instance of the month May, then X meets Y |
| consequent |
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| (=> (and (instance ?D EasterSunday) (temporalPart ?D ?M) (instance ?M Month)) (or (instance ?M March) (instance ?M April) (instance ?M May))) |
Media.kif 492-500 | If X is an instance of Easter sunday, X is a part of Y, and Y is an instance of month, then At least one of the following holds: (1) Y is an instance of March (2) Y is an instance of April (3) Y is an instance of May |
| statement |
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