Bei der neuesten Version der entsprechenden Pakete sollte das Wort "electrical" getrennt werden. Das funktioniert bei Mir aber leider nicht:
\listfiles %\documentclass[letterpaper, 10 pt, conference]{IEEEconf} % Comment this line out if you need a4paper \documentclass[a4paper, 10pt, conference]{IEEEconf} % Use this line for a4 paper \usepackage[english]{babel} \newtheorem{theorem}{Theorem} \usepackage{amsmath} \begin{document} \begin{theorem} Let $ u_{xxxx}:=XX $ be the input of the electrical subsystem. \end{theorem} \end{document}
Hier ist meine filelist:
*File List* IEEEconf.cls 2004/1/15 revision V1.6b by Pradeep Misra ot1ptm.fd 2001/06/04 font definitions for OT1/ptm. babel.sty 2008/07/08 v3.8m The Babel package bblopts.cfg 2006/07/31 v1.0 MiKTeX 'babel' configuration english.ldf 2005/03/30 v3.3o English support from the babel system amsmath.sty 2013/01/14 v2.14 AMS math features amstext.sty 2000/06/29 v2.01 amsgen.sty 1999/11/30 v2.0 amsbsy.sty 1999/11/29 v1.2d amsopn.sty 1999/12/14 v2.01 operator names ***********