Combining Philosophers
Ideas for Melvin Fitting, Stephen P. Schwartz and Hilbert,D/Ackermann,W
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5 ideas
4. Formal Logic / C. Predicate Calculus PC / 1. Predicate Calculus PC
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The first clear proof of the consistency of the first order predicate logic was in 1928 [Hilbert/Ackermann, by Walicki]
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4. Formal Logic / E. Nonclassical Logics / 8. Intensional Logic
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If terms change their designations in different states, they are functions from states to objects [Fitting]
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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
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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
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Justication logics make explicit the reasons for mathematical truth in proofs [Fitting]
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