Take the 2-minute tour ×  This is the preamble to a book I'm
editing:   Trying to compile this document yields the error:
LaTeX Error: Command \proof already defined.  This error only
occurred after the inclusion of amsthm in the above list, which
I need for one of the chapters. Obviously amsthm is clashing
with some other package in the list, but I have no way of
finding which one (the other packages are needed for other
chapters anyway).  Is there any way of telling LaTeX to ignore
the definition of proof from amsthm, thus hopefully resolving
the conflict?  Edit: The class I'm using is monog3, which is
provided to me by Oxford University Press. I don't know if I can
share its contents, but I have checked and it does contain the
conflicting definition:  \def\proof{\trivlist \item[\hskip
\labelsep{\bf Proof\ }]}  With this in mind, is there a way to
get around the clash?  share|improve this question This works
for me. If you're using TeX Live, I suggest you do an update:
tlmgr update --all (I just did that m