Combining Philosophers
Ideas for Empedocles, Engelbretsen,G/Sayward,C and Achille Varzi
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8 ideas
4. Formal Logic / A. Syllogistic Logic / 1. Aristotelian Logic
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13913
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The four 'perfect syllogisms' are called Barbara, Celarent, Darii and Ferio [Engelbretsen/Sayward]
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13914
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Syllogistic logic has one rule: what is affirmed/denied of wholes is affirmed/denied of their parts [Engelbretsen/Sayward]
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4. Formal Logic / A. Syllogistic Logic / 2. Syllogistic Logic
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13915
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Syllogistic can't handle sentences with singular terms, or relational terms, or compound sentences [Engelbretsen/Sayward]
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4. Formal Logic / A. Syllogistic Logic / 3. Term Logic
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13916
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Term logic uses expression letters and brackets, and '-' for negative terms, and '+' for compound terms [Engelbretsen/Sayward]
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4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / a. Axioms for sets
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10653
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Maybe set theory need not be well-founded [Varzi]
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4. Formal Logic / G. Formal Mereology / 1. Mereology
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10648
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Mereology need not be nominalist, though it is often taken to be so [Varzi]
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10655
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Are there mereological atoms, and are all objects made of them? [Varzi]
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10659
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There is something of which everything is part, but no null-thing which is part of everything [Varzi]
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