The Logic Alphabet

See Crystal Clear: An Interview with Shea Zellweger.

The Logic Alphabet is a script designed to be written on paper, so it’s only in two dimensions, but the overall patterns it captures are actually in four dimensions. Of course, we can’t build anything in four dimensions, but there is a three-dimensional version that neatly encapsulates the basic figures. In the 1970s, Shea Zellweger built some models as teaching tools, which beginners can play with. In this way they become familiar with the symmetries and beautiful patterns, long before they are able to think about logic itself.