diff --git a/math.tex b/math.tex
index 60b8930..35b8db0 100644
--- a/math.tex
+++ b/math.tex
@@ -1,7 +1,8 @@
 \usepackage{amsmath}
 %\usepackage{mathtools}
 \usepackage{bbm}
-\newcommand{\set}[1]{\left\lbrace #1 \right\rbrace }
+\newcommand{\set}[1]{\left\lbrace #1 \right\rbrace}
+\newcommand{\setCond}[2]{\left\lbrace #1\vphantom{#2} \right. \left| \vphantom{#1}#2 \right\rbrace}
 \newcommand{\setZ}{\mathbbm{Z}}
 \newcommand{\setN}{\mathbbm{N}}
 \newcommand{\setQ}{\mathbbm{Q}}