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Saturday
Oct072006

An Impossible Requirement

doors.JPG

I don't think the people who designed these notices for Southwest Trains realized that 'everything' includes 'doors', and that it is not possible to keep doors away from themselves!  (Maybe I have been spending too much writing formal specifications in Alloy and TLA+.)

Reader Comments (1)

Everything includes the things people may be carrying. So does that mean no one can go thru the doors?
October 12 | Unregistered CommenterAydin

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