Combining Texts
Ideas for
'The Evolution of Modern Metaphysics', 'Intensional Logic' and 'Philosophical Investigations'
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5 ideas
5. Theory of Logic / A. Overview of Logic / 8. Logic of Mathematics
11026
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Classical logic is deliberately extensional, in order to model mathematics [Fitting]
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5. Theory of Logic / E. Structures of Logic / 1. Logical Form
18743
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Wittgenstein says we want the grammar of problems, not their first-order logical structure [Wittgenstein, by Horsten/Pettigrew]
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5. Theory of Logic / F. Referring in Logic / 1. Naming / a. Names
4139
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Naming is a preparation for description [Wittgenstein]
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5. Theory of Logic / F. Referring in Logic / 1. Naming / b. Names as descriptive
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A name is not determined by a description, but by a cluster or family [Wittgenstein, by Kripke]
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5. Theory of Logic / F. Referring in Logic / 3. Property (λ-) Abstraction
11028
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λ-abstraction disambiguates the scope of modal operators [Fitting]
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