Combining Texts

All the ideas for 'Through the Looking Glass', 'The Logical Syntax of Language' and 'On a supposed right to lie'

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

---

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]

23. Ethics / B. Contract Ethics / 3. Promise Keeping

22442

If lies were ever acceptable, with would undermine all duties based on contract [Kant]

23. Ethics / D. Deontological Ethics / 2. Duty

22441

The law will protect you if you tell a truth which results in murder [Kant]