Re: unavailable symbols/special characters?

[Tuukka Toivonen]

On Sun, 16 Sep 2001, Praedor Tempus wrote:

> me "\(\Box\)" in the latex window.  Inserting this into the appropriate 
> location does nothing but error out because it requires a number, a number 

If I insert that into LyX document, LyX (or LaTeX) says my to use
Layout/Document/Extra/Use AMSmath package, and if I select it it works
just fine.