# Headers in my article have italic instead of normal font, when there is a \newpage inside a theorem enviroment [duplicate]

Like you suggest, i fix the minimum working example. When i use the package polyglossia, the Headers/Footers are in Italic for the page that contains the first half theorem.

\documentclass{article}%%% OR dependencies

\usepackage[utf8]{inputenc}
\usepackage[english]{babel}

\usepackage{polyglossia}
\setmainlanguage[variant=mono]{greek}
\setotherlanguage{english}
\setmainfont{Arial}

\usepackage[Sonny]{fncychap}
\usepackage{amssymb} % maths
\usepackage{amsmath}

\newtheorem{theorem}{Θεώρημα}[section]
\newtheorem{lemma}{Λήμμα}[section]
\newtheorem{definition}{Ορισμός}[section]
\newtheorem{claim}{Ισχυρισμός}[section]
\newtheorem{guess}{Εικασία}[section]

\usepackage{fancyhdr}

\pagestyle{fancy}
\fancyfoot[R]{\fontsize{10pt}{12pt}\selectfont PAGE}
\fancyfoot[C]{}
\fancyfoot[L]{\fontsize{8pt}{9.6pt}\selectfont FOOT}

\begin{document}

\pagestyle{fancy}
\newpage
\begin{guess}
\label{first_claim}
Text first Page $k+1$,\newpage test second page.
\end{guess}

\end{document}


## marked as duplicate by Johannes_B, Bobyandbob, Sebastiano, Schweinebacke, Stefan PinnowJul 13 '18 at 8:03

• Please tell us how the guess environment is defined, and do please tell us which package you load to define theorem-like environments. Which LaTeX format do you employ? Which text fonts do you employ? Aside: Why is there a page break inside the guess environment? How long do these guesses tend to be? Basically, please provide all information needed to generate the issue you need to fix. – Mico Jul 12 '18 at 4:34
• i used asmthm for guess environment - header and footer are not in italic check it. – Mu30 murugans2katgmail Jul 12 '18 at 4:37