It had not been my intention in commenting on the nature and relationship of numbers to one another to give so much attention to them.
However they seem to have a will of their own and more delightful relationships make themselves manifest to me daily so the theme has expanded.
Since this is so closely related to beauty I still feel it should belong to the arts, but I am aware of rather losing sight of the other art forms and so have created a sub-section to hold all of those pages that deal directly with Numbers.