Mack+Shoer

There was   a medieval  tradition   according to which the Greek philosopher Parmenides invented while living on a rock in Egypt. The story is pure legend, but it does reflect the fact that Parmenides was the first philosopher to use an extended argument for his views rather than   merely proposing a vision of reality. But using arguments   is not the same as studying them, and Parmenides never systematically formulated or studied principles of argumentation in their own right. There is no evidence that he was even aware of the implicit rules of inference used in presenting his doctrine. Perhaps Parmenides' use of argument was inspired by the practice of early Greek mathematics among the Pythagoreans. Thus, it is significant that Parmenides is reported to have had a Pythagorean teacher. But the  history of Pythagoreanism in this early period is  shrouded    in mystery, and it is hard to separate fact from legend.

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