paul wrote: >Here is a small LyX file that illustrates the problem with \mathtt{} in >math mode. \texttt works fine, but \mathtt (typed verbatim in a formula) >simply disappears.
The example file also displays this problem on my cygwin lyx system (cygwin 1.3.17-1, winnt, miktex 2.2, lyx 1.2.3). I'm not sure what the output of \mathtt{} should have been. Is it supposed to be a math alphabet command to create true-type font text inside a formula? Might be a good idea to ask Claus Hentschel. I've tried to port nasty code to cygwin before and was plagued by runtime bugs which I couldn't track down at the time, and eventually gave up.