John Philoponus

Byzantine philosopher (c.490–c.570)

John Philoponus (Ancient Greek: Ἰωάννης ὁ Φιλόπονος, Ioánnis o Philóponos; c. 490 – c. 570), also known as John the Grammarian or John of Alexandria, was a Greek-speaking philologist, Aristotelian commentator and Christian theologian from Alexandria, Byzantine Egypt, who authored a number of philosophical treatises and theological works.

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