\newcommand{\coloneqq}{\mathrel{\vcenter{\baselineskip0.5ex \lineskiplimit0pt
                     \hbox{\scriptsize.}\hbox{\scriptsize.}}}%
                     =}

\newcommand{\defeq}{\coloneqq}
\newcommand{\bN}{\mathbb{N}}
\newcommand{\bC}{\mathbb{C}}
\newcommand{\bX}{\mathbb{X}}
% \newcommand{\to}{\rightarrow}
\newcommand{\mto}{\mapsto}
\newcommand{\UU}{\ensuremath{\mathcal{U}}\xspace}
\let\type\UU
\newcommand{\nomen}[1]{\emph{#1}}
\newcommand{\todo}[1]{\textit{#1}}
\newcommand{\comp}{\circ}
\newcommand{\x}{\times}
\newcommand{\Hom}{\mathit{Hom}}
\newcommand{\fmap}{\mathit{fmap}}
\newcommand{\idFun}{\mathit{id}}
\newcommand{\Sets}{\mathit{Sets}}
\newcommand{\Set}{\mathit{Set}}
\newcommand{\hSet}{\mathit{hSet}}
\newcommand{\Type}{\mathcal{U}}
\newcommand{\isEquiv}{\mathit{isEquiv}}
\newcommand{\idToIso}{\mathit{idToIso}}
\newcommand{\MCU}{\UU}
\newcommand{\isSet}{\mathit{isSet}}
\newcommand{\isContr}{\mathit{isContr}}
\newcommand{\id}{\mathit{id}}
\newcommand{\tp}{\,\mathord{:}\,}
\newcommand\hA{\mathit{hA}}
\newcommand\hB{\mathit{hB}}
\newcommand\Object{\mathit{Object}}
\newcommand\Functor{\mathit{Functor}}
\newcommand\isProp{\mathit{isProp}}
\newcommand{\subsubsubsection}[1]{\textbf{#1}}
\newcommand{\WIP}{\textbf{WIP}}