X-Git-Url: http://gitweb.michael.orlitzky.com/?p=mjotex.git;a=blobdiff_plain;f=examples.tex;h=a1605c11bd311340a5212754fe0cc7453220f662;hp=ef9a0d56f9a29c78a58d6b4cf8534a96ab746731;hb=1b921ba1f02499f5784ddb87fd59c0621255042c;hpb=bd3eeb942bc06aee3717638865ec9503b3fdd535

diff --git a/examples.tex b/examples.tex
index ef9a0d5..a1605c1 100644
--- a/examples.tex
+++ b/examples.tex
@@ -99,7 +99,9 @@
     The conic hull of a set $X$ is $\cone{X}$; its affine hull is
     $\aff{X}$, and its convex hull is $\conv{X}$. If $K$ is a cone,
     then its lineality space is $\linspace{K}$, its lineality is
-    $\lin{K}$, and its extreme directions are $\Ext{K}$.
+    $\lin{K}$, and its extreme directions are $\Ext{K}$. The fact that
+    $F$ is a face of $K$ is denoted by $F \faceof K$; if $F$ is a
+    proper face, then we write $F \properfaceof K$.
   \end{section}
 
   \begin{section}{Font}