Combining Texts

All the ideas for 'The Runabout Inference Ticket', 'Letters to Leibniz' and 'De rebus naturalibus'

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7 ideas

4. Formal Logic / D. Modal Logic ML / 7. Barcan Formula
16519 No one can conceive of a possible substance, apart from those which God has created [Arnauld]
5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives
17896 We need to know the meaning of 'and', prior to its role in reasoning [Prior,AN, by Belnap]
17898 Prior's 'tonk' is inconsistent, since it allows the non-conservative inference A |- B [Belnap on Prior,AN]
11021 Prior rejected accounts of logical connectives by inference pattern, with 'tonk' his absurd example [Prior,AN, by Read]
13836 Maybe introducing or defining logical connectives by rules of inference leads to absurdity [Prior,AN, by Hacking]
8. Modes of Existence / C. Powers and Dispositions / 3. Powers as Derived
16740 A power is not a cause, but an aptitude for a cause [Zabarella]
26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / b. Prime matter
16571 Prime matter is exceptionally obscure [Zabarella]