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rbeezer committed d3786cc

Minor edits, Section HSE

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 v3.xx 2013//
 ~~~~~~~~~~~~~~~~
 Edit: Minor edits in Sections WILA, SSLE, RREF, TSS
+Edit: Extended slightly the conclusion of Theorem HSC
 
 
 v3.10 2013/08/20

src/section-HSE.xml

 <theorem acro="HSC" index="homogeneous system!consistent">
 <title>Homogeneous Systems are Consistent</title>
 <statement>
-<p>Suppose that a system of linear equations is homogeneous.  Then the system is consistent.</p>
+<p>Suppose that a system of linear equations is homogeneous.  Then the system is consistent and one solution is found by setting each variable to zero.</p>
 
 </statement>
 
 </li>
 <li>Suppose a homogeneous system of equations has 13 variables and 8 equations.  How many solutions will it have?  Why?
 </li>
-<li>Describe in words (not symbols) the null space of a matrix.
+<li>Describe, using only words, the null space of a matrix. (So in particular, do not use any symbols.)
 </li></ol>
 </readingquestions>