diff --git a/2021_Algebra_I.tex b/2021_Algebra_I.tex
index cbfc43c..d6750cc 100644
--- a/2021_Algebra_I.tex
+++ b/2021_Algebra_I.tex
@@ -773,7 +773,7 @@ In general, these inequalities may be strict.
 \subsection{Transcendence degree}
 \subsubsection{Matroids}
 \begin{definition}[Hull operator]
-    \npr
+    
     Let $X$ be a set, $\cP(X)$ the power set of $X$. A \vocab{Hull operator}  on $X$ is a map $\cP(X) \xrightarrow{\cH} \cP(X)$ such that
     \begin{enumerate}
         \item[H1] $\A A \in \cP(X) ~ A \se \cH(A)$.
@@ -806,7 +806,7 @@ In general, these inequalities may be strict.
     Let $L / K$ be a field extension and let $\cH(T)$ be the algebraic closure in $L$ of the subfield of $L$ generated by $K$ and $T$.\footnote{This is the intersection of all subfields of $L$ containing $K \cup T$, or the field of quotients of the sub-$K$-algebra of  $L$ generated by $T$.}
     Then $\cH$ is a matroidal hull operator.
 \end{lemma}
-\begin{proof}\npr
+\begin{proof}
     H1, H2 and F are trivial. For an algebraically closed subfield $K \se M \se L$ we have $\cH(M) = M$. Thus $\cH(\cH(T)) = \cH(T)$ (H3).
 
     Let $x,y \in L$, $T \se L$ and $x \in  \cH(T \cup \{y\}) \sm \cH(T)$. We have to show that $y \in  \cH(T \cup \{x\}) \sm \cH(T)$.
diff --git a/algebra.sty b/algebra.sty
index 2f8091a..0eb48b1 100644
--- a/algebra.sty
+++ b/algebra.sty
@@ -3,7 +3,7 @@
 
 \RequirePackage{mkessler-math}
 
-\RequirePackage[english, numberall]{mkessler-fancythm}
+\RequirePackage[number in = section]{fancythm}
 \RequirePackage{hyperref}
 \RequirePackage[english, index]{mkessler-vocab}
 \RequirePackage{mkessler-hypersetup}
@@ -36,12 +36,12 @@
 \DeclareMathOperator{\hght}{ht}
 \newcommand{\Wlog}{W.l.o.g. }
 
-\newcommand{\fm}{\ensuremath\mathfrak{m}}
 \newcommand{\Vspec}{\ensuremath V_{\mathbb{S}}}%\Spec}}
 \newcommand{\Vs}{\ensuremath V_{\mathbb{S}}}%\Spec}}
 \newcommand{\Va}{\ensuremath V_{\mathbb{A}}}%\Spec}}
 \newcommand{\Vp}{\ensuremath V_{\mathbb{P}}}%\Spec}}
 \newcommand{\Pn}{\bP^n}%\Spec}}
+
 \newcommand{\Span}[1]{\langle#1\rangle}
 \newcommand{\npr}{\footnote{Not relevant for the exam.}}
 \newcommand{\limrel}{\footnote{Limited relevance for the exam.}} % may appear in 3x questions