Combining Texts

All the ideas for 'works', 'New Foundations for Mathematical Logic' and 'Remarks on the Foundations of Mathematics'

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4 ideas

3. Truth / H. Deflationary Truth / 1. Redundant Truth

11074

'It is true that this follows' means simply: this follows [Wittgenstein]

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

9879	NF has no models, but just blocks the comprehension axiom, to avoid contradictions [Quine, by Dummett]

5. Theory of Logic / D. Assumptions for Logic / 3. Contradiction

10121

Contradiction is not a sign of falsity, nor lack of contradiction a sign of truth [Pascal]

6. Mathematics / C. Sources of Mathematics / 6. Logicism / a. Early logicism

11073

Two and one making three has the necessity of logical inference [Wittgenstein]