The Quadrivium

(Last 4 parts of The Seven Liberal Arts)

Deals with the abstraction of ‘number’ primarily.

“Mathematics is the alphabet in which god has written the universe.” Galileo Galilei

Pertains to Matter & Quantity- the advanced four.

[4] MATHEMATICS- number in itself, which is a pure abstraction; that is, outside of space and time.

[5] GEOMETRY- number in space.

[6] MUSIC OR HARMONIC THEORY- number in time.

[7] ASTRONOMY- number in space and time.
a. Number
b. Geometry
c. Harmonics
d. Cosmology