Combining Philosophers
Ideas for Melvin Fitting, Derek Parfit and John von Neumann
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7 ideas
4. Formal Logic / E. Nonclassical Logics / 8. Intensional Logic
15375
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If terms change their designations in different states, they are functions from states to objects [Fitting]
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15376
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Intensional logic adds a second type of quantification, over intensional objects, or individual concepts [Fitting]
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4. Formal Logic / E. Nonclassical Logics / 9. Awareness Logic
15378
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Awareness logic adds the restriction of an awareness function to epistemic logic [Fitting]
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4. Formal Logic / E. Nonclassical Logics / 10. Justification Logics
15379
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Justication logics make explicit the reasons for mathematical truth in proofs [Fitting]
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4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / a. Axioms for sets
3340
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Von Neumann defines each number as the set of all smaller numbers [Neumann, by Blackburn]
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4. Formal Logic / F. Set Theory ST / 5. Conceptions of Set / f. Limitation of Size
15943
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Limitation of Size is not self-evident, and seems too strong [Lavine on Neumann]
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4. Formal Logic / F. Set Theory ST / 8. Critique of Set Theory
3355
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Von Neumann wanted mathematical functions to replace sets [Neumann, by Benardete,JA]
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