Full Idea
A number is a multitude composed of units.
Gist of Idea
A number is a multitude composed of units
Source
Michael Dummett (Frege philosophy of mathematics [1991], 7 Def 2)
Book Reference
Dummett,Michael: 'Frege: philosophy of mathematics' [Duckworth 1991], p.194
A Reaction
This is outdated by the assumption that 0 and 1 are also numbers, but if we say one is really just the 'unit' which is preliminary to numbers, and 0 is as bogus a number as i is, we might stick with the original Greek distinction.