Combining Texts

All the ideas for 'Through the Looking Glass', 'The Logical Syntax of Language' and 'Among the Dead Cities'

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

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5 ideas

5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence

13342

Carnap defined consequence by contradiction, but this is unintuitive and changes with substitution [Tarski on Carnap]

5. Theory of Logic / C. Ontology of Logic / 4. Logic by Convention

13251

Each person is free to build their own logic, just by specifying a syntax [Carnap]

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]

20. Action / C. Motives for Action / 5. Action Dilemmas / b. Double Effect

7293	It is legitimate to do harm if it is the unintended side-effect of an effort to achieve a good [Grayling]

25. Social Practice / E. Policies / 1. War / a. Just wars

7292	War must also have a good chance of success, and be waged with moderation [Grayling]