lEt moi -...- si j'avait so comment en revenir, One service mathematics
has rendered the je n'y serais point alle: ' human race. It has put
common sense back Ju1e. Veme where it belongs, 01\ the topmost shelf
next to the dUlty canister labelled 'discarded non- Tbe series is
divergent; therefore we may be sense'. able to do something with it.
Erie 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 reweiting 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'tftre of this series.