Start digest of introductory Algebra, Number theory lecture

1 files changed, 1 insertions, 0 deletions

diff --git a/common/commands.tex b/common/commands.tex
index a77ef6b..0162f8e 100644
--- a/common/commands.tex
+++ b/common/commands.tex
@@ -2,6 +2,7 @@
 \newcommand{\N}{\mathbb{N}}
 \newcommand{\K}{\mathbb{K}}
 \newcommand{\Q}{\mathbb{Q}}
+\newcommand{\Z}{\mathbb{Z}}
 
 \newcommand{\powerset}[1]{\mathcal{P}(#1)}
 \newcommand{\skp}[1]{\langle #1 \rangle}