A real number is any number that can be represented on the complete number line\.

This is not a very good summary, since it relies on the reader understanding what a "complete number line" is.

by Alexei Andreev Jul 14 2016

A real number is any number that can be represented on the complete number line\.

This is not a very good summary, since it relies on the reader understanding what a "complete number line" is.

## Comments

Joe Zeng

I thought so too when I wrote it up; I put it there as a placeholder for a Wikipedia-style initial definition once we find one that's more suitable, because I'm having a hard time thinking of one.