如果我想在 Ubuntu TexLive2013 中编译带有“ł”的 tex 文件,在验证环境中,如果“ł”在外面,那么就可以了:
Underfull \hbox (badness 7558) in paragraph at lines 17--18
\OT4/cmr/m/n/10.95 ho-mo-mor-fizm $\OML/cmm/m/it/10.95 x[] \OMS/cmsy/m/n/10.95
! \OML/cmm/m/it/10.95 H[]$ \OT4/cmr/m/n/10.95 prze-kszta�ca $\OML/cmm/m/it/10.9
5 u \OMS/cmsy/m/n/10.95 ! \OML/cmm/m/it/10.95 u[]$ \OT4/cmr/m/n/10.95 oraz $\OM
L/cmm/m/it/10.95 v \OMS/cmsy/m/n/10.95 !
[]
\documentclass[11pt,b5paper,openany]{book}
\usepackage{amsthm} %proof
\usepackage[polish]{babel} %musi być po amssymb
\usepackage[utf8]{inputenc}
\usepackage[OT4]{fontenc}
\begin{document}
\sloppy
\begin{proof}
Niech $x,x \in x(x_x)$ oraz $x',x' \in V(H_l)$. Niech homomorfizm $x_l \to H_l$ przekształca $u \to u'$ oraz $v \to v'$. Niech $x(x_1,x_2,\ldots,x_n),(x_1,x_2,\ldots,x_n)x$ będzie krawędzią grafu $G_1,G_2,\ldots,\ldots,G_n$.
\end{proof}
\end{document}