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'fragments/reports', 'Natural Science (lost)' and 'Nihilism without Self-Contradiction'
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2 ideas
7. Existence / A. Nature of Existence / 6. Criterion for Existence
527
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Everything exists which anyone perceives [Metrodorus of Chios]
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5992
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Chrysippus says action is the criterion for existence, which must be physical [Chrysippus, by Tieleman]
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