RE: Difference between EM QUAD and EM SPACE

[Roozbeh Pournader]

On Mon, 10 Jul 2000, Jonathan Coxhead wrote:

>    In TeX, the difference is that an EM QUAD (\qquad) and an EN QUAD 
> (\quad) provide spaces that are legitimate breakpoints for lines within a 
> paragraph; while EM SPACE, EN SPACE (\enspace) and THIN SPACE (\thinspace) 
> produce horizontal space that cannot cause a line-break.

I don't think so. I remember thatn in TeX, \quad was an an em quad, and
\qquad a double em quad. Would someone look at a good source for that?

--roozbeh