Ideas of Max Black, by Theme
[Russian, b.1909, Born at Baku in Russia. Lived in the United States. Professor at Cornell Univesity.]
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4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / j. Axiom of Choice IX
10196

The Axiom of Choice needs a criterion of choice

9. Objects / A. Existence of Objects / 4. Individuation / b. Individuation by properties
10194

Two things can only be distinguished by a distinct property or a distinct relation

9. Objects / F. Identity among Objects / 5. SelfIdentity
10193

The 'property' of selfidentity is uselessly tautological

9. Objects / F. Identity among Objects / 7. Indiscernible Objects
10195

If the universe just held two indiscernibles spheres, that refutes the Identity of Indiscernibles
