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© 2004-08
Sergei Haller
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sergei@sergei-haller.de
btexx GmbH
Dr. Sergei Haller
btexx business technologies GmbH
Rheinstraße 4N
55116 Mainz
Germany
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sergei.haller@btexx.de
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Mathematics is a game played according to certain simple rules
with meaningless marks on paper.
-- David Hilbert