Combining Texts
Ideas for
'Metaphysics', 'A Plea for Substitutional Quantification' and 'The Ways of Paradox'
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5 ideas
4. Formal Logic / B. Propositional Logic PL / 2. Tools of Propositional Logic / e. Axioms of PL
562
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Axioms are the underlying principles of everything, and who but the philosopher can assess their truth? [Aristotle]
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573
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The axioms of mathematics are part of philosophy [Aristotle]
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4. Formal Logic / D. Modal Logic ML / 4. Alethic Modal Logic
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Modal logic is not an extensional language [Parsons,C]
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4. Formal Logic / F. Set Theory ST / 5. Conceptions of Set / d. Naïve logical sets
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The set scheme discredited by paradoxes is actually the most natural one [Quine]
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4. Formal Logic / F. Set Theory ST / 7. Natural Sets
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Russell's antinomy challenged the idea that any condition can produce a set [Quine]
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