Combining Texts

All the ideas for 'Through the Looking Glass', 'Epistemic Operators' and 'Barcan Formulae'

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

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3 ideas

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

15380

Barcan:nothing comes into existence; Converse:nothing goes out; Both:domain is unchanging [Vervloesem]

7. Existence / A. Nature of Existence / 3. Being / e. Being and nothing

21982

I only wish I had such eyes as to see Nobody! It's as much as I can do to see real people. [Carroll,L]

13. Knowledge Criteria / A. Justification Problems / 2. Justification Challenges / c. Knowledge closure

6445	You have knowledge if you can rule out all the relevant alternatives to what you believe [Dretske, by DeRose]