latex-setup

diff --git a/preamble-common.tex b/preamble-common.tex
@@ -16,9 +16,8 @@
 \usepackage{mathtools, adjustbox}
 \usepackage[scr=esstix,cal=boondox]{mathalfa}
 \usepackage{enumitem, xfrac, xcolor, cancel, multicol, tabularx, relsize}
-\usepackage{hyperref}
-\usepackage{csquotes}
-\usepackage{xalgebra, xgeometry, functional, capitalgreekall}
+\usepackage{hyperref, csquotes}
+\usepackage{xalgebra, xtopology, xgeometry, functional, capitalgreekall}
 \usepackage{ytableau}
 \usepackage[backend=biber]{biblatex}
 \usepackage{pgfplots, tikz, tikz-cd}
@@ -61,6 +60,8 @@
 \newcommand{\XX}{\mathbb{X}}     % Double struck X
 \newcommand{\YY}{\mathbb{Y}}     % Double struck Y
 \newcommand{\ZZ}{\mathbb{Z}}     % Double struck Z
+\newcommand{\hh}{\mathds{h}}     % Double struck h
+\newcommand{\kk}{\mathds{k}}     % Double struck k
 
 % Use \blacksquare for \qed
 \renewcommand{\qedsymbol}{\ensuremath{\blacksquare}}
@@ -86,11 +87,8 @@
 \DeclareRobustCommand\longtwoheadrightarrow
   {\relbar\joinrel\twoheadrightarrow}
 
-% Translate \gcd and \lcm to portuguese
-\let\gcd\relax
-\DeclareMathOperator{\gcd}{mdc}
-\let\lcm\relax
-\DeclareMathOperator{\lcm}{mmc}
+% Fix the subset symbol
+\renewcommand{\subset}{\subseteq}
 
 % Redefine \bar
 \renewcommand{\bar}{\overline}