Combining Texts
Ideas for
'Laws of Nature', 'Conceptual truth and metaphysical necessity' and 'Necessary Beings'
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5 ideas
5. Theory of Logic / A. Overview of Logic / 7. Second-Order Logic
19296
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If second-order variables range over sets, those are just objects; properties and relations aren't sets [Hale]
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5. Theory of Logic / C. Ontology of Logic / 4. Logic by Convention
19289
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Maybe conventionalism applies to meaning, but not to the truth of propositions expressed [Hale]
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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
19298
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Unlike axiom proofs, natural deduction proofs needn't focus on logical truths and theorems [Hale]
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