lie-algebras-and-their-representations

diff --git a/preamble.tex b/preamble.tex
@@ -134,10 +134,6 @@
 % Only use \smallsetminus
 \renewcommand{\setminus}{\smallsetminus}
 
-% Make the \mid symbol taller (this is useful for Group Theory)
-\renewcommand{\mid}{\,\mathlarger{\mathlarger{\mathchar"326A}}\,}
-\renewcommand{\nmid}{\,\mathlarger{\mathlarger{\mathchar"352D}}\,}
-
 % Get propper inequality symbols
 \renewcommand{\leq}{\leqslant}
 \renewcommand{\le}{\leqslant}
@@ -161,26 +157,15 @@
 % A semantic alternative to \textbf
 \newcommand{\strong}[1]{\textbf{#1}}
 
-% Set cardinal
-\newcommand{\card}[1]{\left|\nobreak#1\nobreak\right|}
-
-% Minus sign with a dot over it. Usefull for typsetting saturated subtraction
-\def\dotminus{\mathbin{\ooalign{\hss\raise1ex\hbox{.}\hss\cr
-  \mathsurround=0pt$-$}}}
-
-% Empty macro (it's usefull for typesetting Young diagrams)
-\newcommand{\void}{ }
-
 % Display long arrows instead of short ones
 \renewcommand{\to}{\longrightarrow}
 \renewcommand{\mapsto}{\longmapsto}
 
-% Fix the goddamn \chi and \wp macros!
-% For some reason the default LaTeX fonts place this characters much lower than
-% where people actually expect them to be. This new definitions place them in
-% with the appropriate spacing
+% Fix the goddamn \chi macro!
+% For some reason the default LaTeX fonts place this character much lower than
+% where people actually expect it to be. This new definition place it in with
+% the appropriate spacing
 \renewcommand{\chi}{\ensuremath \raisebox{\depth}{$\mathchar"11F$}}
-\renewcommand{\wp}{\ensuremath \raisebox{\depth}{$\mathchar"17D$}}
 
 % Quotient object
 \newcommand{\mfrac}[2]{\mathlarger{\sfrac{#1}{#2}}}