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

Classical interdefinitions of logical constants and quantifiers is impossible in intuitionism [Bostock]

4. Formal Logic / E. Nonclassical Logics / 6. Free Logic

13846

A 'free' logic can have empty names, and a 'universally free' logic can have empty domains [Bostock]

4. Formal Logic / E. Nonclassical Logics / 8. Intensional Logic

15375

If terms change their designations in different states, they are functions from states to objects [Fitting]

15376

Intensional logic adds a second type of quantification, over intensional objects, or individual concepts [Fitting]

4. Formal Logic / E. Nonclassical Logics / 9. Awareness Logic

15378

Awareness logic adds the restriction of an awareness function to epistemic logic [Fitting]

4. Formal Logic / E. Nonclassical Logics / 10. Justification Logics

15379

Justication logics make explicit the reasons for mathematical truth in proofs [Fitting]