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Aristotle, The Stoics, The Neoplatonists, The Medieval Latin West, 790–1200, The Medieval Latin West, 1200–1500

Logic is the study of correct reasoning. A host of philosophical themes have clustered around this central concern: the nature of truth and validity, of possibility and necessity; the semantics of words, sentences, and arguments; and even questions about substances and accidents, free will and determinism.

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Science EncyclopediaScience & Philosophy: Linear expansivity to Macrocosm and microcosm