deleterofworlds

hard to judge on a screen how they will look printed

A nice bijection from integers to natural numbers. Mappings exist for rationals -> natural numbers and other countable sets, but may be less practical.

This is neat, but perhaps switching the final typesetting engine from chromium's PDF printer to LaTex (via Pandoc maybe) would make it more useful. You'd get more control over things like page numbering and TOCs, plus good justification/microtypography, which is important to most publishers.

At the arrows work...