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Single Idea 14144

[filed under theme 6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / b. Types of number ]

Full Idea

Ordinal numbers result from likeness among relations, as cardinals from similarity among classes.

Gist of Idea

Ordinals result from likeness among relations, as cardinals from similarity among classes

Source

Bertrand Russell (The Principles of Mathematics [1903], §293)

Book Ref

Russell,Bertrand: 'Principles of Mathematics' [Routledge 1992], p.317