Combining Texts
Ideas for
'Laws of Nature', 'A Dictionary of Philosophy' and 'Gentzen's Analysis of First-Order Proofs'
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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 / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives
13825
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Natural deduction introduction rules may represent 'definitions' of logical connectives [Prawitz]
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5. Theory of Logic / G. Quantification / 1. Quantification
15891
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Traditional quantifiers combine ordinary language generality and ontology assumptions [Harré]
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5. Theory of Logic / G. Quantification / 7. Unorthodox Quantification
15878
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Some quantifiers, such as 'any', rule out any notion of order within their range [Harré]
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5. Theory of Logic / H. Proof Systems / 4. Natural Deduction
13823
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In natural deduction, inferences are atomic steps involving just one logical constant [Prawitz]
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