1 files changed, 4 insertions, 0 deletions
diff --git a/toolbox.sty b/toolbox.sty
index 3355557..0235b71 100644
--- a/toolbox.sty
+++ b/toolbox.sty
@@ -34,6 +34,8 @@
   \@beginparpenalty=\prevparpenalty
 }
 
+%% stack relations in subscript or superscript
+\def\mAthop#1{\displaystyle\mathop{\scriptstyle #1}}
 
 %% array spanning the entire line
 \newlength\largearray@width
@@ -42,3 +44,5 @@
 \def\largearray{\begin{array}{@{}>{\displaystyle}l@{}}\hphantom{\hspace{\largearray@width}}\\[-.5cm]}
 \def\endlargearray{\end{array}}
 
+%% qedsquare
+\def\qed{\penalty10000\hfill\penalty10000$\square$}