Combining Philosophers

Ideas for Augustine, Engelbretsen,G/Sayward,C and Quentin Meillassoux

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5. Theory of Logic / A. Overview of Logic / 4. Pure Logic

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In modern logic all formal validity can be characterised syntactically [Engelbretsen/Sayward]

5. Theory of Logic / A. Overview of Logic / 6. Classical Logic

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Classical logic rests on truth and models, where constructivist logic rests on defence and refutation [Engelbretsen/Sayward]