Combining Texts

All the ideas for 'works', 'The Runabout Inference Ticket' and 'Commentary on Sentences'

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6 ideas

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]

5. Theory of Logic / G. Quantification / 2. Domain of Quantification

17743

De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki]

9. Objects / D. Essence of Objects / 13. Nominal Essence

16627

If you remove the accidents from a horse and a lion, the intellect can't tell them apart [Francis of Marchia]