--- a/hws/hw02.tex	Tue Oct 28 06:01:00 2014 +0000
+++ b/hws/hw02.tex	Tue Oct 28 12:24:11 2014 +0000
@@ -50,7 +50,7 @@
   Write down clearly in each case what you need to prove and
   what are the assumptions. 
   
-\item Define what is mean by the derivative of a regular expressions
+\item Define what is meant by the derivative of a regular expressions
   with respoect to a character. (Hint: The derivative is defined
   recursively.)