Add \unit{} for the multiplicative identity element.

[mjotex.git] / examples.tex

diff --git a/examples.tex b/examples.tex
index 131a213b5a465894f7691edf546952e676c2e8b1..65e0c80b69f960cb07f1e2790c61eb12e6b1e911 100644 (file)
--- a/examples.tex
+++ b/examples.tex
@@ -36,6 +36,9 @@
     $\mathcal{A}$ and if $x,y,z \in \mathcal{A}$, then
     $\alg{\set{x,y,z}}$ is the smallest subalgebra of $\mathcal{A}$
     containing the set $\set{x,y,z}$.
+
+    If $R$ has a multiplicative identity (that is, a unit) element,
+    then that element is denoted by $\unit{R}$.
   \end{section}
 
   \begin{section}{Algorithm}