Mathematicians often use 'quasi-empirical' methods as a starting point (read from the new paragraph half-way down): http://books.google.co.uk/books?id=jvrx-jIG

Mathematicians often use 'quasi-empirical' methods as a starting point (read from the new paragraph half-way down): http://books.google.co.uk/books?id=jvrx-jIGbGoC&pg=PA67&lpg=PA67&dq=putnam+quasi-empirical+mathematics+euler&source=web&ots=Rf4RKQLLNx&sig=032D4VBTtdLXNWAj-8vAK3OqFX8&hl=en&sa=X&oi=book_result&resnum=2&ct=result#PPA67,M1 http://books.google.co.uk/books?id=jvrx-jIGbGoC&pg=PA67&...