Package: texlive-latex3 Version: 2009-7 Severity: normal There is a conflict between the packages xfrac and mathtools, which prevents a document from using the both together. To trigger the bug you can try to compile the attached document.
> $ latex demo.tex
> This is pdfTeX, Version 3.1415926-1.40.10 (TeX Live 2009/Debian)
> restricted \write18 enabled.
> entering extended mode
> (./demo.tex
> LaTeX2e <2009/09/24>
> Babel <v3.8l> and hyphenation patterns for english, usenglishmax, dumylang,
> noh
> yphenation, ngerman, german, german-x-2009-06-19, ngerman-x-2009-06-19,
> italian
> , latin, loaded.
> (/usr/share/texmf-texlive/tex/latex/base/article.cls
> Document Class: article 2007/10/19 v1.4h Standard LaTeX document class
> (/usr/share/texmf-texlive/tex/latex/base/size10.clo))
> (/usr/share/texmf-texlive/tex/latex/mh/mathtools.sty
> (/usr/share/texmf-texlive/tex/latex/graphics/keyval.sty)
> (/usr/share/texmf-texlive/tex/latex/tools/calc.sty)
> (/usr/share/texmf-texlive/tex/latex/mh/mhsetup.sty)
> (/usr/share/texmf-texlive/tex/latex/amsmath/amsmath.sty
> For additional information on amsmath, use the `?' option.
> (/usr/share/texmf-texlive/tex/latex/amsmath/amstext.sty
> (/usr/share/texmf-texlive/tex/latex/amsmath/amsgen.sty))
> (/usr/share/texmf-texlive/tex/latex/amsmath/amsbsy.sty)
> (/usr/share/texmf-texlive/tex/latex/amsmath/amsopn.sty)))
> (/usr/share/texmf-texlive/tex/latex/mh/xfrac.sty
> (/usr/share/texmf-texlive/tex/latex/expl3/expl3.sty
> (/usr/share/texmf-texlive/tex/latex/expl3/l3names.sty)
> (/usr/share/texmf-texlive/tex/latex/expl3/l3basics.sty)
> (/usr/share/texmf-texlive/tex/latex/expl3/l3expan.sty)
> (/usr/share/texmf-texlive/tex/latex/expl3/l3tl.sty)
> (/usr/share/texmf-texlive/tex/latex/expl3/l3num.sty
> This is a LaTeX bug: check coding!
> ! Command name `\if_num:w' already defined! Current meaning: \ifnum.
> \msg_kernel_bug:x ...oding!}\tex_errmessage:D {#1}
>
> l.56 \cs_new_eq:NN \if_num:w
> \tex_ifnum:D
> ? x
> No pages of output.
> Transcript written on demo.log.
Thanks, Giovanni.
--- System information. ---
Architecture: i386
Kernel: Linux 2.6.31-1-686
Debian Release: squeeze/sid
500 unstable www.debian-multimedia.org
500 unstable mi.mirror.garr.it
500 testing security.debian.org
500 testing mi.mirror.garr.it
500 stable security.debian.org
500 stable mi.mirror.garr.it
1 experimental mi.mirror.garr.it
--- Package information. ---
Depends (Version) | Installed
===================================-+-=============
dpkg (>= 1.14.18) | 1.15.5.6
tex-common (>= 2.00) | 2.06
texlive-common (>= 2009-1) | 2009-7
texlive-latex-base (>= 2009-1) | 2009-7
debconf (>= 0.5) | 1.5.28
OR debconf-2.0 |
ucf | 3.0025
debconf (>= 1.4.69) | 1.5.28
OR cdebconf (>= 0.39) |
dpkg (>= 1.14.18) | 1.15.5.6
Package Status (Version) | Installed
=============================-+-===========
tetex-bin |
tetex-base |
tetex-extra |
tex-common | 2.06
Package's Recommends field is empty.
Suggests (Version) | Installed
========================-+-===========
debhelper (>= 7.0.8) | 7.4.11
--
Giovanni Mascellani <mascell...@poisson.phc.unipi.it>
Pisa, Italy
Web: http://poisson.phc.unipi.it/~mascellani
Jabber: g.mascell...@jabber.org / giova...@elabor.homelinux.org
\documentclass{article}
\usepackage{mathtools}
\usepackage{xfrac}
\begin{document}
Demo
\end{document}
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