Plato's Heaven

Abstract objects, those visible only to the mind, live in what some call "Plato's Heaven."

This website belongs to Nathan Carter, who writes mathematical software, to help us explore, play, and learn about those abstract, mathematical objects.

Nathan is not necessarily a Platonist, but likes the metaphor anyway. Read more about Platonism here and here.

Spins 3D

A free group-theory-based puzzle game