Combining Texts

All the ideas for 'Laches', 'Tarski on Truth and Logical Consequence' and 'On boundary numbers and domains of sets'

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7 ideas

1. Philosophy / A. Wisdom / 3. Wisdom Deflated

291	Don't assume that wisdom is the automatic consequence of old age [Plato]

3. Truth / F. Semantic Truth / 1. Tarski's Truth / c. Meta-language for truth

19323

'Snow is white' depends on meaning; whether snow is white depends on snow [Etchemendy]

3. Truth / G. Axiomatic Truth / 1. Axiomatic Truth

19137

We can get a substantive account of Tarski's truth by adding primitive 'true' to the object language [Etchemendy]

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / a. Axioms for sets

17832

Zermelo showed that the ZF axioms in 1930 were non-categorical [Zermelo, by Hallett,M]

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / h. Axiom of Replacement VII

13028

Replacement was added when some advanced theorems seemed to need it [Zermelo, by Maddy]

5. Theory of Logic / L. Paradox / 3. Antinomies

17626

The antinomy of endless advance and of completion is resolved in well-ordered transfinite numbers [Zermelo]

23. Ethics / C. Virtue Theory / 3. Virtues / d. Courage

293	Being unafraid (perhaps through ignorance) and being brave are two different things [Plato]