\usepackage{xcolor}%%\usepackage{fontspec}\usepackage[sc]{mathpazo}\usepackage{fontspec}\setmainfont[Ligatures=TeX]{Palatino Linotype}\usepackage{amssymb}\usepackage{amsmath}\definecolor{darkblue}{rgb}{0,0,0.6}\usepackage[colorlinks=true,urlcolor=darkblue,linkcolor=darkblue]{hyperref}\usepackage{marginnote}\usepackage{fontawesome5}%% does not work after the last upgrade%%\usepackage{menukeys}%%% for regular expressions and values\newcommand{\ZERO}{\mbox{\bf 0}}\newcommand{\ONE}{\mbox{\bf 1}}\newcommand{\Left}{\textit{Left}}\newcommand{\Der}{\textit{Der}}\newcommand{\der}{\textit{der}}\newcommand{\Ders}{\textit{Ders}}\newcommand{\ders}{\textit{ders}}%%% for trees%% http://anorien.csc.warwick.ac.uk/mirrors/CTAN/graphics/pgf/contrib/forest/forest.pdf%%% url pointers\newcommand{\here}[1]{\marginnote{\href{#1}{\faHandPointRight[regular]}}}\newcommand{\video}[1]{\marginnote{\href{#1}{\faFilm}}}\newcommand{\alert}{\reversemarginpar\marginpar{\mbox{}\hfill\textcolor{red}{\faExclamationTriangle}}}\newcommand{\dn}{\stackrel{\mbox{\scriptsize def}}{=}}\newcommand{\defn}[1]{\textit{\textbf{#1}}}\newcommand{\dq}[1]{\mbox{\tt{"}}#1\mbox{\tt{"}}}\definecolor{codegray}{gray}{0.9}\makeatletter\def\fnote{\gdef\@thefnmark{}\@footnotetext}\makeatother% CW deadlines\def\cwSIX{20 November}\def\cwSIXa{15 January}\def\cwSEVEN{27 November}\def\cwSEVENa{15 January}\def\cwEIGHT{4 December}\def\cwEIGHTa{15 January}\def\cwNINE{11 December}\def\cwNINEa{15 January}\def\cwTEN{15 January}\def\cwTENa{15 January}