Combining Texts

Ideas for 'Writing the Book of the World', 'Potentiality' and 'The Theory of Objects'

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7 ideas

4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / c. System D

19033

Deontic modalities are 'ought-to-be', for sentences, and 'ought-to-do' for predicates [Vetter]

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

19032

S5 is undesirable, as it prevents necessities from having contingent grounds [Vetter]

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

15023

The Barcan schema implies if X might have fathered something, there is something X might have fathered [Sider]

19036

The Barcan formula endorses either merely possible things, or makes the unactualised impossible [Vetter]

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

8250	So-called 'free logic' operates without existence assumptions [Meinong, by George/Van Evra]

4. Formal Logic / G. Formal Mereology / 1. Mereology

15004

'Gunk' is an object in which proper parts all endlessly have further proper parts [Sider]

4. Formal Logic / G. Formal Mereology / 3. Axioms of Mereology

14984

Which should be primitive in mereology - part, or overlap? [Sider]