Adding a ligature to a word

[Rich Shepard]

  I want to use the ligature '\ae' at the beginning of a word. However, when
I add it using the ERT button, I get an error message about an "undefined
control sequence" when I try to compile the document.

  What do I read to learn what I've done incorrectly?

Thanks,

Rich

Dr. Richard B. Shepard, President

                       Applied Ecosystem Services, Inc. (TM)
            2404 SW 22nd Street | Troutdale, OR 97060-1247 | U.S.A.
 + 1 503-667-4517 (voice) | + 1 503-667-8863 (fax) | rshepard@appl-ecosys.com
                         http://www.appl-ecosys.com/