latex-setup

 %                                 _     _       _            
 %  _ __  _ __ ___  __ _ _ __ ___ | |__ | | ___ | |_ _____  __
 % | '_ \| '__/ _ \/ _` | '_ ` _ \| '_ \| |/ _ \| __/ _ \ \/ /
 % | |_) | | |  __/ (_| | | | | | | |_) | |  __/| ||  __/>  < 
 % | .__/|_|  \___|\__,_|_| |_| |_|_.__/|_|\___(_)__\___/_/\_\
 % |_|                                                        
 % 
 % Pablo (C) 2022
 
 \documentclass[a4paper]{article}
 \usepackage[total={6in, 9in}]{geometry}
 \usepackage{xexercise}
 \input{preamble-common}
 
 % configure how link look
 \hypersetup{
   colorlinks,
   citecolor=black,
   filecolor=black,
   linkcolor=black
 }
 
 % Configure the enumerate environment to use bold roman numerals
 \setenumerate[0]{label={\normalfont\bfseries(\roman*)}}
 
 % Useful theorem definitions
 \newtheorem{theorem}{Theorem}[section]
 \newtheorem*{theorem*}{Theorem}
 \newtheorem{lemma}{Lemma}[section]
 \newtheorem*{lemma*}{Lemma}
 \newtheorem{propostion}{Proposition}
 \newtheorem*{propostion*}{Proposition}
 \newtheorem{corollary}{Corollary}[section]
 \newtheorem*{corollary*}{Corollary}
 \newtheorem{proposition}{Proposition}[section]
 \newtheorem*{proposition*}{Proposition}
 \theoremstyle{remark}
 \newtheorem*{note}{Note}
 \theoremstyle{definition}
 \newtheorem{definition}{Definition}[section]
 \newtheorem*{definition*}{Definition}
 \newtheorem{example}{Example}[section]
 \newtheorem*{example*}{Example}