Combining Philosophers
Ideas for Melvin Fitting, Stephen P. Schwartz and David Bostock
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6 ideas
4. Formal Logic / E. Nonclassical Logics / 2. Intuitionist Logic
18122
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Classical interdefinitions of logical constants and quantifiers is impossible in intuitionism [Bostock]
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4. Formal Logic / E. Nonclassical Logics / 6. Free Logic
13846
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A 'free' logic can have empty names, and a 'universally free' logic can have empty domains [Bostock]
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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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