Re: Contents of Preamble...EndPreamble in Layout not being output to tex file

[Geevarghese Philip]

rgheck wrote:

This is a bug of sorts in the 1.5 layout system, I expect. The problem 
is that the preamble later gets redefined and your bit gets 
over-written. Try adding this at the end:
Style Theorem
       Preamble
         \usepackage{amsthm}
         \theoremstyle{plain}
         \newtheorem{thm}{Theorem}
       EndPreamble
End
I think that'll work.


Thanks, but unfortunately it doesn't work. I added this snippet to the 
end of the amsreport layout file, but the error persists.

One thing I noticed in the output tex file was that the very first lines 
are like the following:

\documentclass[english]{report}
...
...
...
\usepackage{amssymb}

The corresponding lines in the .lyx file are:

\lyxformat 276
\begin_document
\begin_header
\textclass amsreport


How does this \usepackage{amssymb} invocation get included in the tex 
preamble right at the top? I didn't include this in the preamble of the 
document. It is not mentioned in the amsreport.layout file, nor in the 
three files that this file "Inputs" : stdclass.inc, amsmaths-seq.inc, 
and numreport.inc. How does LyX know to include this invocation then? 
Perhaps I can modify the file which causes this line to be included to 
serve my purpose?

Thanks,
Philip