"If it is not abstract it is not mathematics" might be taken as a touchstone for discriminating between mathematics and other departments of precise investigation.


Mathematics: Queen and Servant of Science, Abstraction and Prediction (p. 259), McGraw-Hill Book Company, Inc. 1951


If it is not abstract it is not mathematics might be taken as a touchstone for discriminating between mathematics and other departments of precise...

If it is not abstract it is not mathematics might be taken as a touchstone for discriminating between mathematics and other departments of precise...

If it is not abstract it is not mathematics might be taken as a touchstone for discriminating between mathematics and other departments of precise...

If it is not abstract it is not mathematics might be taken as a touchstone for discriminating between mathematics and other departments of precise...