Combining Texts
Ideas for
'Issues of Pragmaticism', 'Regressive Method for Premises in Mathematics' and 'The Structure of Objects'
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5 ideas
5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence
13288
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Consequence is truth-preserving, either despite substitutions, or in all interpretations [Koslicki]
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5. Theory of Logic / B. Logical Consequence / 4. Semantic Consequence |=
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'Roses are red; therefore, roses are colored' seems truth-preserving, but not valid in a system [Koslicki]
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5. Theory of Logic / K. Features of Logics / 1. Axiomatisation
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Which premises are ultimate varies with context [Russell]
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17630
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The sources of a proof are the reasons why we believe its conclusion [Russell]
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Finding the axioms may be the only route to some new results [Russell]
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