Editing Diophantus (section)

===Later antiquity===
After its publication, Diophantus' work continued to be read in the Greek-speaking Mediterranean from the 4th through the 7th centuries.{{sfn|Christianidis|Megremi|2019}}  The earliest known reference to Diophantus, in the 4th century, is the ''Commentary on the [[Almagest]]'' [[Theon of Alexandria]], which quotes from the introduction to the ''Arithmetica''.{{sfn|Christianidis|Megremi|2019|pp=18-20}} According to the [[Suda]], [[Hypatia]], who was Theon's daughter and frequent collaborator, wrote a now lost commentary on Diophantus' ''Arithmetica'', which suggests that this work may have been closely studied by [[Neoplatonism|Neoplatonic]] mathematicians in Alexandria during [[Late antiquity]].{{sfn|Christianidis|Megremi|2019|pp=18-20}} References to Diophantus also survive in a number of Neoplatonic [[scholia]] to the works of [[Iamblichus]].{{sfn|Christianidis|Megremi|2019|pp=22}} A 6th century Neoplatonic commentary on [[Porphyry of Tyre|Porphyry]]'s ''[[Isagoge]]'' by [[Pseudo-Elias]] also mentions Diophantus; after outlining the [[quadrivium]] of [[arithmetic]], [[geometry]], [[music]], and [[astronomy]]  and four other disciplines adjacent to them ("logistic", "geodesy", "music in matter" and "spherics"), it mentions that [[Nicomachus]] (author of the ''Introduction to Arithmetic'') occupies the first place in arithmetic but Diophantus occupies the first place in "logistic", showing that, despite the title of ''Arithmetica'', the more algebraic work of Diophantus was already seen as distinct from arithmetic prior to the medieval era.{{sfn|Christianidis|Megremi|2019|pp=23}}