Combining Texts

All the ideas for 'fragments/reports', 'Beitrage' and 'Introduction to Russell's Theory of Types'

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

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4 ideas

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / p. Axiom of Reducibility

18170

The Axiom of Reducibility is self-effacing: if true, it isn't needed [Quine]

18. Thought / E. Abstraction / 2. Abstracta by Selection

9145	We form the image of a cardinal number by a double abstraction, from the elements and from their order [Cantor]

25. Social Practice / E. Policies / 5. Education / b. Education principles

13304

Learned men gain more in one day than others do in a lifetime [Posidonius]

27. Natural Reality / D. Time / 1. Nature of Time / d. Time as measure

20820

Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus]