Combining Philosophers

Ideas for Melvin Fitting, Anon (Plat) and Trenton Merricks

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6 ideas

4. Formal Logic / D. Modal Logic ML / 1. Modal Logic

19209

Simple Quantified Modal Logc doesn't work, because the Converse Barcan is a theorem [Merricks]

4. Formal Logic / D. Modal Logic ML / 7. Barcan Formula

19208

The Converse Barcan implies 'everything exists necessarily' is a consequence of 'necessarily, everything exists' [Merricks]

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]