John O'Hagan wrote: > Or to put it another way, if I ask someone "Amongst your books, is one of > them 'Robinson Crusoe'?", and they don't have any books, they could > answer 'yes' (or 'no' equally truthfully), but I'd rather they told me > that no, they don't have 'Robinson Crusoe'.
That's why you ask "Do you have any books called 'Robinson Crusoe'?" rather than "Are all your books called 'Robinson Crusoe'?". The difference between logic and natural language is more striking with "or". When you ask "Do you take the bus at nine or eleven?" you certainly don't expect "Yes" as the answer. Peter -- http://mail.python.org/mailman/listinfo/python-list
