X-Git-Url: http://gitweb.michael.orlitzky.com/?p=mjotex.git;a=blobdiff_plain;f=mjo-algebra.tex;h=88523456235e4bde91b99d9f99f1fcd41280588c;hp=010ab0512a5b719aeafdc40283eebff3b969b89c;hb=fc7cfa7f3d02715cb09eae2e1c6bc501dc2d8d50;hpb=d4712abb88a2f342f31bbd60426d1a983df05ac2

diff --git a/mjo-algebra.tex b/mjo-algebra.tex
index 010ab05..8852345 100644
--- a/mjo-algebra.tex
+++ b/mjo-algebra.tex
@@ -1,6 +1,9 @@
 %
 % Abstract algebraic structures.
 %
+\ifx\havemjoalgebra\undefined
+\def\havemjoalgebra{1}
+
 
 % Needed for \operatorname.
 \usepackage{amsopn}
@@ -15,3 +18,6 @@
 % coefficients is the first argument and whose indeterminates (a
 % comma-separated list) are the second argumnt.
 \newcommand*{\polyring}[2]{{#1}\left[{#2}\right]}
+
+
+\fi