diff --git a/documentex/constantes_document_latex.py b/documentex/constantes_document_latex.py
index e4a252a..6e09f08 100644
--- a/documentex/constantes_document_latex.py
+++ b/documentex/constantes_document_latex.py
@@ -5,7 +5,7 @@ import jinja2
 softname = 'documentex'
 """Nom du programme
 """
-version = '1.4'
+version = '1.5'
 """Version du programme
 """
 
diff --git a/documentex/templates/Utils/01_paquets.tex b/documentex/templates/Utils/01_paquets.tex
index d1b4825..78e5b2c 100644
--- a/documentex/templates/Utils/01_paquets.tex
+++ b/documentex/templates/Utils/01_paquets.tex
@@ -13,6 +13,7 @@
 \usepackage{graphicx} %environnements figure
 \usepackage{float} %environnements flottants
 \usepackage{array} %environnements array
+\usepackage{faktor} %ensembles quotients
 \usepackage{hyperref}
 \usepackage[table,usenames,dvipsnames,x11names]{xcolor} %couleurs
 \usepackage{mathdots} % pour les iddots
diff --git a/documentex/templates/Utils/04_environnements.tex b/documentex/templates/Utils/04_environnements.tex
index 1a26f1b..74ac514 100644
--- a/documentex/templates/Utils/04_environnements.tex
+++ b/documentex/templates/Utils/04_environnements.tex
@@ -83,6 +83,7 @@
 \newtcolorbox{ex}[1][]{colframe=gray!50!white,colback=white,leftrule=2pt, toprule=-1pt, rightrule=-1pt, bottomrule=-1pt,boxsep=0pt,right=0.3cm, left=0.3cm, top=3pt, bottom=3pt,fonttitle=\bfseries,sharpish corners,breakable,enhanced,code = {\noindent\textbf{Exemple.}\par},notitle,#1}
 \newtcolorbox{exs}[1][]{colframe=gray!50!white,colback=white,leftrule=2pt, toprule=-1pt, rightrule=-1pt, bottomrule=-1pt,boxsep=0pt,right=0.3cm, left=0.3cm, top=3pt, bottom=3pt,fonttitle=\bfseries,sharpish corners,breakable,enhanced,code = {\noindent\textbf{Exemples.}\par},notitle,#1}
 \newtcolorbox{rmks}[1][]{colframe=black!50!white,colback=white,leftrule=2pt, toprule=-1pt, rightrule=-1pt, bottomrule=-1pt,boxsep=0pt,right=0.3cm, left=0.3cm, top=3pt, bottom=3pt,fonttitle=\bfseries,sharpish corners,breakable,enhanced,code= {\noindent\textbf{Remarques.}\par},notitle,#1}
+\newtcolorbox{ins}[1][]{colframe=red!50!white,colback=white,leftrule=2pt, toprule=-1pt, rightrule=-1pt, bottomrule=-1pt,boxsep=0pt,right=0.3cm, left=0.3cm, top=3pt, bottom=3pt,fonttitle=\bfseries,sharpish corners,breakable,enhanced,code= {\noindent\textbf{Instructions.}\par},notitle,#1}
 
 \renewtcolorbox{proof}[1][]{colframe=red,colback=white,leftrule=2pt, toprule=-1pt, rightrule=-1pt, bottomrule=1pt,boxsep=0pt,right=0.3cm, left=0.3cm, top=3pt, bottom=3pt,sharpish corners,notitle,before upper ={\textbf{Preuve} :\par},after upper ={\qed},breakable,enhanced,#1}
 
diff --git a/documentex/templates/Utils/05_macros.tex b/documentex/templates/Utils/05_macros.tex
index c44b05a..c6f7171 100644
--- a/documentex/templates/Utils/05_macros.tex
+++ b/documentex/templates/Utils/05_macros.tex
@@ -16,6 +16,7 @@
 \def\Nt{\mathbb{N}^{\times}}
 \def\Z{\mathbb{Z}}
 \def\U{\mathbb{U}}
+\def\F{\mathbb{F}}
 \def\dt{\text{dt}}
 \def\dx{\text{dx}}
 \def\d{\partial}
diff --git a/documentex/templates/Utils/06_math_operator.tex b/documentex/templates/Utils/06_math_operator.tex
index db6d146..b81c8f1 100644
--- a/documentex/templates/Utils/06_math_operator.tex
+++ b/documentex/templates/Utils/06_math_operator.tex
@@ -1,6 +1,9 @@
 \DeclareMathOperator{\GL}{GL}
 \DeclareMathOperator{\Sym}{S}
 \DeclareMathOperator{\An}{A}
+\DeclareMathOperator{\Uni}{U}
+\DeclareMathOperator{\syl}{Syl}
+\DeclareMathOperator{\stab}{Stab}
 \DeclareMathOperator{\GU}{GU}
 \DeclareMathOperator{\PGL}{PGL}
 \DeclareMathOperator{\SL}{SL}