GIA4752354: The Liberal Arts: the Trivium and the Quadrivium - in “” Margarita Philosophica”” by Gregor Reisch (1467-1525). Bale, 1517. In medieval teaching, quadrivium referred to the four mathematical arts: arithmetic, music, geometry and astronomy. Quadrivium is distinguished from Trivium, which includes grammar, rhetoric and logic (dialectic). These two branches of knowledge constituted the seven liberal arts, a concept derived from Greek philosophy., Reisch, Gregor (d.1525) / Bridgeman Images