AMMDI is an open-notebook hypertext writing experiment, authored by Mike Travers aka mtraven. It's a work in progress and some parts are more polished than others. Comments welcome! More.
May be related to structuralism, although I never really understood what that was all about to be honest, whereas algebraic is something deeply felt. GOFAI tends towards the algebraic: Cyc, but even more Meaningness's early work cognitive cliches
To be honest I never quite got what structuralism was all about, probably because it was the water I swam in. It was very influential in MIT AI circles; Seymour Papert had worked with Piaget and brought in other Piagetians like Edith Ackermann.