Philip of Opus occupation mathematician
Philip (or Philippus) of Opus (Greek: Φίλιππος Ὀπούντιος), was a philosopher, astronomer, and mathematician.  He was a member of Plato’s Academy and after the master's death, edited his last work, Laws.  He is generally considered the author of the Platonic Epinomis (On the Laws), a follow-on conversation among the same interlocutors.
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