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Hi,

I don't manually load the amsthm package, it auto loads as I add the module "theorems" in lyx.
I've tried adding these lines in the layout file but it didn't work.

How can I manually define the proof and example enviroments?
Also, I need the lemma, thoerem, etc. enviroments.

Hi All,

I want to write a paper using the ec-acmsmall.cls style file. Unfortunately, this class already defined the proof and example enviroments, and therefore, in order to avoid an error, I have to add the following lines before the amsthm so the latex preample looks like :

\documentclass ...