Combining Texts

Ideas for 'fragments/reports', 'Negation' and 'Scientific Essentialism'

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4 ideas

4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / h. System S5

13604

Real possibility and necessity has the logic of S5, which links equivalence classes of worlds of the same kind [Ellis]

4. Formal Logic / E. Nonclassical Logics / 2. Intuitionist Logic

18789

Intuitionist logic looks best as natural deduction [Mares]

18790

Intuitionism as natural deduction has no rule for negation [Mares]

4. Formal Logic / E. Nonclassical Logics / 3. Many-Valued Logic

18787

Three-valued logic is useful for a theory of presupposition [Mares]