Complex sentence: Which of the law-men came up with that piece of Jargon? Nils Rauhut of the "Internet Encyclopedia of Philosophy" concludes from this passage that Thrasymachus must have been teaching in Athens for several years before this point.
Split into simpler sentences: Which of the law-men came up with that piece of Jargon? Dillon and Gergel assume that the word had some technical definition, possibly given to it by Thrasymachus Nils Rauhut of the "Internet Encyclopedia of Philosophy" concludes from this passage that Thrasymachus must have been teaching in Athens for several years before this point.