Combining Texts

Ideas for 'Parmenides', 'Necessary Beings' and 'Essay Conc Human Understanding (2nd Ed)'

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4 ideas

4. Formal Logic / A. Syllogistic Logic / 2. Syllogistic Logic

8084	Syllogisms are verbal fencing, not discovery [Locke]

12572

Many people can reason well, yet can't make a syllogism [Locke]

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

19297

The two Barcan principles are easily proved in fairly basic modal logic [Hale]

19301

With a negative free logic, we can dispense with the Barcan formulae [Hale]