Often unschoolers with no formal training in math acquire mathematics through real world applications or can catch up with formally instructed peers easily.
It featured neither the formal complexity of OTHER MATHEMATICS nor the wild no-wave spazz party of ZOO PSYCHOLOGY, though much of the raw musical material emerged from Zoo-era writing sessions.
He was a formidable polymath, doing important work in mathematics, physics, logic, the study of formal and natural languages, and many other disciplines.