Combining Texts
Ideas for
'Explaining the A Priori', 'The Concept of Truth for Formalized Languages' and 'Relativism'
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9 ideas
5. Theory of Logic / A. Overview of Logic / 6. Classical Logic
4705
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Logical relativism appears if we allow more than one legitimate logical system [O'Grady]
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5. Theory of Logic / D. Assumptions for Logic / 1. Bivalence
4700
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A third value for truth might be "indeterminate", or a point on a scale between 'true' and 'false' [O'Grady]
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5. Theory of Logic / D. Assumptions for Logic / 4. Identity in Logic
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Identity is invariant under arbitrary permutations, so it seems to be a logical term [Tarski, by McGee]
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5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives
4704
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Wittgenstein reduced Russell's five primitive logical symbols to a mere one [O'Grady]
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5. Theory of Logic / F. Referring in Logic / 1. Naming / c. Names as referential
10823
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A name denotes an object if the object satisfies a particular sentential function [Tarski]
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5. Theory of Logic / I. Semantics of Logic / 1. Semantics of Logic
18756
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Tarski built a compositional semantics for predicate logic, from dependent satisfactions [Tarski, by McGee]
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19313
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Tarksi invented the first semantics for predicate logic, using this conception of truth [Tarski, by Kirkham]
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5. Theory of Logic / J. Model Theory in Logic / 1. Logical Models
16323
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The object language/ metalanguage distinction is the basis of model theory [Tarski, by Halbach]
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5. Theory of Logic / L. Paradox / 6. Paradoxes in Language / a. The Liar paradox
8940
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Tarski avoids the Liar Paradox, because truth cannot be asserted within the object language [Tarski, by Fisher]
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