Combining Texts
Ideas for
'fragments/reports', 'The Scientific Image' and 'Prior Analytics'
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10 ideas
4. Formal Logic / A. Syllogistic Logic / 1. Aristotelian Logic
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22271
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Aristotle was the first to use schematic letters in logic [Aristotle, by Potter]
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11060
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Aristotelian syllogisms are three-part, subject-predicate, existentially committed, with laws of thought [Aristotle, by Hanna]
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18909
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Aristotelian sentences are made up by one of four 'formative' connectors [Aristotle, by Engelbretsen]
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8080
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Aristotelian identified 256 possible syllogisms, saying that 19 are valid [Aristotle, by Devlin]
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13912
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Aristotle replaced Plato's noun-verb form with unions of pairs of terms by one of four 'copulae' [Aristotle, by Engelbretsen/Sayward]
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8071
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Aristotle listed nineteen valid syllogisms (though a few of them were wrong) [Aristotle, by Devlin]
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4. Formal Logic / A. Syllogistic Logic / 2. Syllogistic Logic
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13819
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Aristotle's said some Fs are G or some Fs are not G, forgetting that there might be no Fs [Bostock on Aristotle]
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4. Formal Logic / B. Propositional Logic PL / 1. Propositional Logic
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8077
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Stoic propositional logic is like chemistry - how atoms make molecules, not the innards of atoms [Chrysippus, by Devlin]
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4. Formal Logic / B. Propositional Logic PL / 2. Tools of Propositional Logic / e. Axioms of PL
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20791
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Chrysippus has five obvious 'indemonstrables' of reasoning [Chrysippus, by Diog. Laertius]
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4. Formal Logic / D. Modal Logic ML / 4. Alethic Modal Logic
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9403
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There are three different deductions for actual terms, necessary terms and possible terms [Aristotle]
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