# Date 1380641109 25200
# Node ID 6901dc98ebc088ec3fd67778253c39f574b71e50
# Parent 85d71902afa7f1af6b4919f47df99d2b128576ad
Stronger finish to proof of Theorem TT (Anna Dovzhik)
diff --git a/changes.txt b/changes.txt
--- a/changes.txt
+++ b/changes.txt
@@ -4,6 +4,7 @@
Edit: Minor edits in Section VO, LC, SS, LI, LDS, O
Edit: Extended slightly the conclusion of Theorem HSC
Edit: Sage CNIP, removed obsolete discussion (Michael DuBois)
+Edit: Stronger finish to proof of Theorem TT (Anna Dovzhik)
Change: Theorem ISRN demoted to Exercise TSS.T11
Change: Prefer "pivot columns" over "leading 1", Chapter SLE
Typo: C^n in statement of Theorem SLSLC
diff --git a/src/section-MO.xml b/src/section-MO.xml
--- a/src/section-MO.xml
+++ b/src/section-MO.xml
@@ -446,6 +446,8 @@
+Since the matrices $\transpose{\left(\transpose{A}\right)}$ and $A$ agree at each entry, tells us the two matrices are equal.

+