ibl.sty

% ibl.sty
% definitions broken out of ibl.cls for use in the slides
\usepackage{jh}

% % ========================================
% % Font
% \usepackage{fourier}
% \usepackage[T1]{fontenc}


\usepackage{mathtools}  % imports amsmath
\DeclarePairedDelimiter\absval{\lvert}{\rvert}%
\newcommand{\lcm}{\operatorname{lcm}}

\RequirePackage{amsthm}
\renewcommand{\qedsymbol}{\rule{0.5em}{2ex}}

% Graphics, with a caption
\newcommand{\grf}[2]{\begin{tabular}{@{}c@{}}\includegraphics{#1} \\ #2\end{tabular}}

% Vulgar fractions
\RequirePackage{xfrac}

% Script characters
\RequirePackage{mathrsfs}
\newcommand{\eqcl}[1]{{\mathscr E}_{#1}}

% euscript characters
\RequirePackage{euscript}
\newcommand{\partition}[1]{\EuScript{#1}}

% mathdots fot dots from lower-left to upper right
\RequirePackage{mathdots}

% Misc commands
\newcommand{\definend}[1]{\textit{#1}}
\newcommand{\pord}{Prove or disprove}
\DeclareMathOperator{\add}{add}
\DeclareMathOperator{\mul}{mul}
\newcommand*{\symdiff}{\mathbin{\triangle}}
\newcommand{\universalset}{\Omega}
\DeclareMathOperator{\range}{Ran}
\DeclareMathOperator{\image}{Im}
\newcommand{\hint}{\textit{Hint:} }
\newcommand{\remark}{\textit{Remark:} }