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