Combining Texts
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'fragments/reports', 'Towards a Universal Characteristic' and 'Pragmatism and Objective Truth'
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4 ideas
5. Theory of Logic / A. Overview of Logic / 4. Pure Logic
19370
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'Blind thought' is reasoning without recognition of the ingredients of the reasoning [Leibniz, by Arthur,R]
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5. Theory of Logic / B. Logical Consequence / 5. Modus Ponens
8078
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Modus ponens is one of five inference rules identified by the Stoics [Chrysippus, by Devlin]
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5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle
6023
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Every proposition is either true or false [Chrysippus, by Cicero]
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5. Theory of Logic / K. Features of Logics / 5. Incompleteness
19391
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We can assign a characteristic number to every single object [Leibniz]
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