Combining Texts

All the ideas for 'Necessary Existents', 'Building Blocks of Mathematical Logic' and 'On Assertion and Indicative Conditionals'

expand these ideas     |    start again     |     specify just one area for these texts

---

4 ideas

5. Theory of Logic / E. Structures of Logic / 4. Variables in Logic

17699

Variables are auxiliary notions, and not part of the 'eternal' essence of logic [Schönfinkel]

10. Modality / B. Possibility / 8. Conditionals / c. Truth-function conditionals

14288

'If A,B' affirms that A⊃B, and also that this wouldn't change if A were certain [Jackson, by Edgington]

13769

Conditionals are truth-functional, but should only be asserted when they are confident [Jackson, by Edgington]

19. Language / D. Propositions / 3. Concrete Propositions

19216

Propositions (such as 'that dog is barking') only exist if their items exist [Williamson]