О новом подходе к реконструкции лекции Феодора (Tht. 147d)
In Theaetetus (145a–148a), Plato brings up Theaetetus’ retelling of a lesson by Theodorus of Cyrene, in which the latter demonstrated the incommensurability of the sides of squares containing three, five, and up to seventeen square feet with the side of one square foot. In this paper, we analyse modern scholarly attempts to reconstruct the exact content of the lesson. Our understanding of the fifth-century mathematics in general (and the early Pythagorean one in particular) may vary significantly depending on which methodology Theodorus actually used.