lEt moi, .... si j'avait Sll comment en revenir, One service mathematics
has rendered the human race. It has put common sense back je n'y serais
point aile: ' where it belongs, on the topmost shelf next Jules Verne to
the dusty canister labelled 'discarded 0- sense'. The series is
divergent; therefore we may be Eric T. Bell able to do something with
it. 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 'e1re of this series.