Combining Philosophers
Ideas for Hermarchus, St John and Dag Prawitz
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5 ideas
5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic
13831
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Logic is based on transitions between sentences [Prawitz]
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5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence
13827
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Logical consequence isn't a black box (Tarski's approach); we should explain how arguments work [Prawitz]
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5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives
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Natural deduction introduction rules may represent 'definitions' of logical connectives [Prawitz]
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5. Theory of Logic / H. Proof Systems / 4. Natural Deduction
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In natural deduction, inferences are atomic steps involving just one logical constant [Prawitz]
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5. Theory of Logic / J. Model Theory in Logic / 1. Logical Models
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Model theory looks at valid sentences and consequence, but not how we know these things [Prawitz]
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