--- a/slides/slides11.tex	Mon Jan 24 00:14:02 2022 +0000
+++ b/slides/slides11.tex	Tue Mar 22 00:36:18 2022 +0000
@@ -2,7 +2,7 @@
 \usepackage{../slides}
 \usepackage{../langs}
 \usepackage{../data}
-\usepackage{../graphics}
+\usepackage{../graphicss}
 \usepackage{soul}
 \usepackage{proof}
 
@@ -10,28 +10,28 @@
 \renewcommand{\slidecaption}{CFL, King's College London}
 \newcommand{\bl}[1]{\textcolor{blue}{#1}}       
 
-\newcommand\grid[1]{%
-	\begin{tikzpicture}[baseline=(char.base)]
-	\path[use as bounding box]
-	(0,0) rectangle (1em,1em);
-	\draw[red!50, fill=red!20]
-	(0,0) rectangle (1em,1em);
-	\node[inner sep=1pt,anchor=base west]
-	(char) at (0em,\gridraiseamount) {#1};
-	\end{tikzpicture}}
-\newcommand\gridraiseamount{0.12em}
+%\newcommand\grid[1]{%
+%	\begin{tikzpicture}[baseline=(char.base)]
+%	\path[use as bounding box]
+%	(0,0) rectangle (1em,1em);
+%	\draw[red!50, fill=red!20]
+%	(0,0) rectangle (1em,1em);
+%	\node[inner sep=1pt,anchor=base west]
+%	(char) at (0em,\gridraiseamount) {#1};
+%	\end{tikzpicture}}
+%\newcommand\gridraiseamount{0.12em}
 
-\makeatletter
-\newcommand\Grid[1]{%
-	\@tfor\z:=#1\do{\grid{\z}}}
-\makeatother	
+%\makeatletter
+%\newcommand\Grid[1]{%
+%	\@tfor\z:=#1\do{\grid{\z}}}
+%\makeatother	
 
-\newcommand\Vspace[1][.3em]{%
-	\mbox{\kern.06em\vrule height.3ex}%
-	\vbox{\hrule width#1}%
-	\hbox{\vrule height.3ex}}
+%\newcommand\Vspace[1][.3em]{%
+%	\mbox{\kern.06em\vrule height.3ex}%
+%	\vbox{\hrule width#1}%
+%	\hbox{\vrule height.3ex}}
 
-\def\VS{\Vspace[0.6em]}
+%\def\VS{\Vspace[0.6em]}
 
 
 \begin{document}