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i use fourier font for my math in my document but definitions, theorems,.. are not bold and when i write english names they are in bold (my text is in greek). Also i want to know what i have to do to change my math font as my text font thank you. Here is my code :

 \usepackage{amsthm}
\usepackage{latexsym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{mathtools}
\usepackage[greek]{babel}
\usepackage[utf8]{inputenc}
\usepackage[active]{srcltx}
\usepackage{fourier}
\newtheorem{theorem}{Θεώρημα}[chapter]
\newtheorem{lemma}[theorem]{Λήμμα}
\newtheorem{proposition}[theorem]{Πρόταση}
\newtheorem{corollary}[theorem]{Πόρισμα}
\newtheorem{definition}[theorem]{Ορισμός}
\newtheorem{remark}[theorem]{Παρατήρηση}
\newtheorem{axiom}[theorem]{Αξίωμα}
\newtheorem{example}[theorem]{Παράδειγμα}
\newtheorem{symb}[theorem]{Συμβολισμός}
\newtheorem{note}[theorem]{Σημείωση}





   \begin{document}
\begin{theorem}
\vert x+y\vert^2=...
\end{theorem}
\textlatin{Banach}
\end{document}
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  • Welcome to TeX SX! Could you post a full compilable code. Do you compile with xelatex?
    – Bernard
    Jul 18, 2017 at 18:19
  • 1
    @spyros you appear to have duplicate accounts.
    – marsupilam
    Jul 18, 2017 at 19:32
  • The srcltx package is obsolete. The fourier font has no support for Greek, so you get font substitutions.
    – egreg
    Jul 18, 2017 at 19:49
  • @user183722 It looks like you've got two separate accounts, which means you cannot edit your original post or leave comments. The Stack Exchange staff can merge them together for you. Jul 18, 2017 at 19:59

1 Answer 1

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In the log file you find

LaTeX Font Warning: Font shape `LGR/futs/m/n' undefined
(Font)              using `LGR/cmr/m/n' instead on input line 26.

LaTeX Font Warning: Font shape `LGR/futs/m/it' undefined
(Font)              using `LGR/futs/m/n' instead on input line 27.

LaTeX Font Warning: Font shape `LGR/futs/bx/n' undefined
(Font)              using `LGR/futs/m/n' instead on input line 28.

LaTeX Font Warning: Font shape `LGR/futs/m/sl' undefined
(Font)              using `LGR/futs/m/n' instead on input line 31.

which is the explanation: fourier has no support for Greek (precisely, for the LGR encoding for Greek). Thus a fallback font is used and no choice of series or shape can be honored.

There is no Utopia based font available in TeX Live supporting Greek, I'm afraid.

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