X-Git-Url: http://gitweb.michael.orlitzky.com/?p=mjotex.git;a=blobdiff_plain;f=mjo-calculus.tex;h=6021163a63f250d43d9d4b630f9fecc0cf384793;hp=c162d34205797074f62e66dcdb101712dfba78e1;hb=HEAD;hpb=4fd0c97de0370110d6fecab412ec1b5b831611e8

diff --git a/mjo-calculus.tex b/mjo-calculus.tex
index c162d34..6021163 100644
--- a/mjo-calculus.tex
+++ b/mjo-calculus.tex
@@ -1,3 +1,13 @@
+%
+% Standard calculus operations.
+%
+\ifx\havemjocalculus\undefined
+\def\havemjocalculus{1}
+
+
 % The gradient of its argument, which should be a function from R^n to
 % R (or maybe some other field).
 \newcommand*{\gradient}[1]{ \nabla{{#1}} }
+
+
+\fi