Definition:Pythagoreans/Quadrivium

Definition
The quadrivium was the medieval name of the required course of study of the Pythagoreans, which had been adopted by the educational establishments in Europe.

The required bodies of knowledge were divided into discrete and continuous:

Thus:
 * Arithmetic: study of the absolute discrete
 * Music: study of the relative discrete
 * Geometry: study of the stable continuous
 * Astronomy: study of the moving continuous.

Also see
Definition:Trivium