--- a/slides10.tex	Tue Dec 04 13:23:53 2012 +0000
+++ b/slides10.tex	Sun Dec 09 13:00:33 2012 +0000
@@ -183,7 +183,7 @@
 \end{tabular}
 \end{center}
 
-Fom (1) we get
+From (1) we get
 
 \begin{center}
 \begin{tabular}{@{}ll@{}}
@@ -192,7 +192,7 @@
 \end{tabular}
 \end{center}
 
-Fom (3) and (2) we get
+From (3) and (2) we get
 
 \begin{center}
 \begin{tabular}{@{}ll@{}}