(=>
(instance ?L Laser)
(exists (?X ?Y ?O1 ?O2 ?X1 ?Y1)
(and
(instance ?X RadiatingVisibleLight)
(instance ?Y RadiatingVisibleLight)
(instrument ?X ?L)
(instrument ?Y ?L)
(origin ?X ?O1)
(origin ?Y ?O2)
(equal ?O1 ?O2)
(not
(equal ?X ?Y))
(wavelength ?X
(MeasureFn ?X1 Nanometer))
(wavelength ?Y
(MeasureFn ?Y1 Nanometer))
(approximateValue ?X1 ?Y1)))) |
engineering.kif 1147-1162 |
If X is an instance of laser, then there exist Y, Z,, , W,, , V,, , U and T such that Y is an instance of radiating visible light and Z is an instance of radiating visible light and X is an instrument for Y and X is an instrument for Z and Y originates at W and Z originates at V and equal W and V and equal Y and Z and the wavelength of Y is U nanometer(s) and the wavelength of Z is T nanometer(s) and the approximate value of U is T |