more from Brian Clegg

### Single Idea 10859

#### [catalogued under 4. Formal Logic / F. Set Theory ST / 2. Mechanics of Set Theory / b. Terminology of ST]

Full Idea

For a set to be 'well-ordered' it is required that every subset of the set has a first element.

Gist of Idea

A set is 'well-ordered' if every subset has a first element

Source

Brian Clegg (Infinity: Quest to Think the Unthinkable [2003], Ch.13)

Book Reference

Clegg,Brian: 'Infinity' [Robinson 2003], p.168