'Et moi, ..., si j'avait su comment en revenir, One service mathematics
has rendered the je n'y se.rais point aile.' human race. It has put
common sense back Jules Verne where it belongs, on !be topmost shelf
next to the dusty canister labelled 'disc: arded non- sense'. The series
is divergent; therefore we may be able to do something with it. Eric T.
Bell O. Heaviside Mathematics is a tool for thought. A highly necessary
tool in a world where both feedback and non- linearities abound.
Similarly, all kinds of parts of mathematics serve as tools for other
parts and for other sciences. Applying a simple rewriting rule to the
quote on the right above one finds such statements as: 'One service
topology has rendered mathematical physics .. .'; 'One service logic has
rendered com- puter science .. .'; 'One service category theory has
rendered mathematics .. .'. All arguably true. And all statements
obtainable this way form part of the raison d'etre of this series.