Philosophia Mathematica Advance Access published online on November 5, 2009
Philosophia Mathematica, doi:10.1093/philmat/nkp017
Whitehead and Russell on Points
* Merton College, Oxford OX1 4JD, England. judith.kirby{at}admin.merton.ox.ac.uk
This paper considers the attempts put forward by A.N. Whitehead and by Bertrand Russell to construct points (and temporal instants) from what they regard as the more basic concept of extended regions. It is shown how what they each say themselves will not do, and how it should be filled out and amended so that the construction may be regarded as successful. Finally there is a brief discussion of whether this construction is worth pursuing, or whether it is better—as in todays mathematics—to prefer a construction that goes the other way round, i.e., to view a region as a set of points.
I take points to include points of time, i.e., instants.