Combining Texts
Ideas for
'fragments/reports', 'Nature and Meaning of Numbers' and 'The Concept of Truth for Formalized Languages'
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5 ideas
4. Formal Logic / B. Propositional Logic PL / 1. Propositional Logic
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
20791
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Chrysippus has five obvious 'indemonstrables' of reasoning [Chrysippus, by Diog. Laertius]
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4. Formal Logic / F. Set Theory ST / 3. Types of Set / d. Infinite Sets
10183
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An infinite set maps into its own proper subset [Dedekind, by Reck/Price]
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4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / f. Axiom of Infinity V
22288
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We have the idea of self, and an idea of that idea, and so on, so infinite ideas are available [Dedekind, by Potter]
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4. Formal Logic / G. Formal Mereology / 1. Mereology
10706
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Dedekind originally thought more in terms of mereology than of sets [Dedekind, by Potter]
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