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| AltKeyHoldDown(alt key hold down) |
| appearance as argument number 1 |
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| (subclass AltKeyHoldDown KeyHoldDown) | ComputerInput.kif 1322-1322 | Alt key hold down is a subclass of holding down a key |
| (documentation AltKeyHoldDown EnglishLanguage "A AltKeyHoldDown is a UserDirectAction of pressing and holding down the Alt key on a keyboard.") | ComputerInput.kif 1324-1326 | Alt key hold down is a subclass of holding down a key |
| (disjoint AltKeyHoldDown ShiftKeyHoldDown) | ComputerInput.kif 1328-1328 | Alt key hold down is disjoint from shift key hold down |
| (disjoint AltKeyHoldDown ControlKeyHoldDown) | ComputerInput.kif 1329-1329 | Alt key hold down is disjoint from control key hold down |
| appearance as argument number 2 |
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| antecedent |
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| (=> (instance ?ACT AltKeyHoldDown) (exists (?KEY) (and (instance ?KEY AltKey) (patient ?ACT ?KEY)))) |
ComputerInput.kif 1331-1336 | If X is an instance of alt key hold down, then there exists Y such that Y is an instance of alt key and Y is a patient of X |
| (=> (and (instance ?ACT AltKeyHoldDown) (patient ?ACT ?KEY) (instance ?KEY ComputerKeyboardKey)) (instance ?KEY AltKey)) |
ComputerInput.kif 1338-1343 | If X is an instance of alt key hold down, Y is a patient of X, and Y is an instance of computer keyboard key, then Y is an instance of alt key |
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