Editing Proclus (section)

====Commentary on Euclid's Elements====
Proclus, the scholiast to Euclid, knew  [[Eudemus of Rhodes]]' ''History of Geometry'' well, and gave a short sketch of the early history of geometry, which appeared to be founded on the older, lost book of Eudemus. The passage has been referred to as "the Eudemian summary," and determines some approximate dates, which otherwise might have remained unknown.{{sfn|Gow|1884}} The influential commentary on the first book of [[Euclid]]'s ''Elements'' is one of the most valuable sources we have for the history of ancient mathematics,{{sfn|Heath|1908}} and its Platonic account of the status of mathematical objects was influential.

In this work, Proclus also listed the first mathematicians associated with Plato: a mature set of mathematicians ([[Leodamas of Thasos]], [[Archytas|Archytas of Taras]], and [[Theaetetus (mathematician)|Theaetetus]]), a second set of younger mathematicians ([[Neoclides]], [[Eudoxus of Cnidus]]), and a third yet younger set ([[Amyntas of Heraclea|Amyntas]], [[Menaechmus]] and his brother [[Dinostratus]], [[Theudius of Magnesia]], [[Hermotimus of Colophon]] and [[Philip of Opus]]). Some of these mathematicians were influential in arranging the ''Elements'' that Euclid later published.