Proclus, whose quote opens the section on Euclid, lived more than 700 years after this date, well into the 5th century AD. Euclid himself wasn't born till about decade after, in 325 BC.
That is true. I've updated the info, though I couldn't quite find the exact date of the publication of "Proclus' Commentary on the First Book of Euclid's Elements".
molteanu|4 years ago
Good catch! Thanks for the heads-up!