Combining Philosophers

Ideas for H.Putnam/P.Oppenheim, Protagoras and John von Neumann

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4 ideas

6. Mathematics / A. Nature of Mathematics / 2. Geometry

1553	No perceptible object is truly straight or curved [Protagoras]

6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / c. Priority of numbers

13489

Von Neumann treated cardinals as a special sort of ordinal [Neumann, by Hart,WD]

6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / e. Ordinal numbers

22716

Von Neumann defined ordinals as the set of all smaller ordinals [Neumann, by Poundstone]

12336

A von Neumann ordinal is a transitive set with transitive elements [Neumann, by Badiou]