diff --git a/tex/latex/dmowitz.sty b/tex/latex/dmowitz.sty
index 3013716..07e6942 100644
--- a/tex/latex/dmowitz.sty
+++ b/tex/latex/dmowitz.sty
@@ -35,10 +35,12 @@
 }
 
 % Lexical symbols
-\def \doubleunderline#1{\underline{\underline{#1}}}
-\def \qed{\hfill$\square.$}
+\newcommand{\doubleunderline}[1]{\underline{\underline{#1}}}
+\newcommand{\qed}{\hfill$\square.$}
+\newcommand{\ezqed}{\hfill$\square$\kern-.65em \tiny ${}^{e\!z}$ \normalsize . }
 \allowdisplaybreaks %page break in align
-\def \lbr{\quad \\}
+
+\newcommand{\lbr}{\quad \\}
 
 % Mathematical symbols
 \newcommand{\obda}{\text{o.\,B.\,d.\,A. }}