Ideas from 'works' by Alfred Tarski [1936], by Theme Structure
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3. Truth / A. Truth Problems / 2. Defining Truth
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10153
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In everyday language, truth seems indefinable, inconsistent, and illogical
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3. Truth / G. Axiomatic Truth / 1. Axiomatic Truth
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19141
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Tarski thought axiomatic truth was too contingent, and in danger of inconsistencies [Davidson]
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5. Theory of Logic / A. Overview of Logic / 4. Pure Logic
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10048
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There is no clear boundary between the logical and the non-logical
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5. Theory of Logic / B. Logical Consequence / 4. Semantic Consequence |=
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10694
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Logical consequence is when in any model in which the premises are true, the conclusion is true [Beall/Restall]
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10479
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Logical consequence: true premises give true conclusions under all interpretations [Hodges,W]
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6. Mathematics / B. Foundations for Mathematics / 3. Axioms for Geometry
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10157
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Tarski improved Hilbert's geometry axioms, and without set-theory [Feferman/Feferman]
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