Combining Texts

All the ideas for 'fragments/reports', 'New Foundations for Mathematical Logic' and 'Letters to Samuel Masson'

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

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3 ideas

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]

6. Mathematics / A. Nature of Mathematics / 5. The Infinite / d. Actual infinite

13190

I don't admit infinite numbers, and consider infinitesimals to be useful fictions [Leibniz]

20. Action / B. Preliminaries of Action / 2. Willed Action / d. Weakness of will

22511

Some reasonings are stronger than we are [Philolaus]