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rbeezer  committed 3b35fe2

Solution ILT.C29, inner span should be a set (Aysha Orta)

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 ~~~~~~~~~~~~~~~~
 New:  Exercise MM.T12, Theorem HMIP reprised
 Change:  Proof of Theorem OD uses normality of diagonal matrices (Hunter Wills)
+Typo:  Solution ILT.C29, inner span should be a set (Aysha Orta)
 
 v3.00 2012/12/05
 ~~~~~~~~~~~~~~~~

File src/section-ILT.xml

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 <![CDATA[0 & 0 & 0 & 0]]>
 \end{bmatrix}
 </alignmath>
-Thus, a basis for the nullspace of $A$ is $\set{\colvector{-1\\-1\\3\\0}}$, and the kernel is $\krn{T} = \spn{\spn{\colvector{-1\\-1\\3\\0}}}$.  Since the kernel is nontrivial, this linear transformation is not injective.
+Thus, a basis for the nullspace of $A$ is $\set{\colvector{-1\\-1\\3\\0}}$, and the kernel is $\krn{T} = \spn{\set{\colvector{-1\\-1\\3\\0}}}$.  Since the kernel is nontrivial, this linear transformation is not injective.
 </solution>
 </exercise>