Full Idea
Benacerraf thinks of numbers as being defined by their natural ordering.
Gist of Idea
Benacerraf says numbers are defined by their natural ordering
Source
report of Paul Benacerraf (What Numbers Could Not Be [1965]) by Kit Fine - Cantorian Abstraction: Recon. and Defence §5
Book Reference
-: 'Journal of Philosophy' [-], p.18
A Reaction
My intuition is that cardinality is logically prior to ordinality, since that connects better with the experienced physical world of objects. Just as the fact that people have different heights must precede them being arranged in height order.