 Plato’s TMA featured prominently in Aristotle’s Peri Ideon, and was later picked up and discussed by medieval philosophers. For instance, Boethius in his Second Commentary on Porphyry’s Isagoge discusses a peculiar infinite regress that could be seen to echo TMA, though it is described as an infinite series of genus ascriptions. (See Spade (1994: 22) for an English translation of the text).