Combining Texts

All the ideas for 'Necessary Existents', 'Building Blocks of Mathematical Logic' and 'Reference and Essence: seven appendices'

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

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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]

7. Existence / D. Theories of Reality / 10. Vagueness / g. Degrees of vagueness

14742

It can't be indeterminate whether x and y are identical; if x,y is indeterminate, then it isn't x,x [Salmon,N]

19. Language / B. Reference / 3. Direct Reference / a. Direct reference

18885

Kripke and Putnam made false claims that direct reference implies essentialism [Salmon,N]

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

19216

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