diff --git a/Advanced/Group Theory/parts/00 review.tex b/Advanced/Group Theory/parts/00 review.tex
index 82a709a..b80bd9b 100755
--- a/Advanced/Group Theory/parts/00 review.tex	
+++ b/Advanced/Group Theory/parts/00 review.tex	
@@ -74,7 +74,7 @@ The set of all units in $\mathbb{Z}_n$ is written $\mathbb{Z}_n^\times$ \\
 Read this as \say{$\mathbb{Z}$ mod $n$ cross}
 
 \problem{}
-What are the elements of $\mathbb{Z}_5)^\times$?
+What are the elements of $\mathbb{Z}_5^\times$?
 
 \begin{solution}
 	$\{1, 2, 3, 4\}$
diff --git a/resources/ormc_handout.cls b/resources/ormc_handout.cls
index 90abab8..33be3b1 100644
--- a/resources/ormc_handout.cls
+++ b/resources/ormc_handout.cls
@@ -107,8 +107,6 @@
 \RequirePackage{amsmath}
 \RequirePackage{amssymb}
 \RequirePackage{multicol}
-\RequirePackage{subfiles}
-
 
 
 
@@ -122,7 +120,6 @@
 \setlist{noitemsep, topsep=0mm}
 \raggedright
 
-% Use symbols instead of numbers for footnotes
 \renewcommand*{\thefootnote}{\arabic{footnote}}
 
 % One space after a period.