1 files changed, 5 insertions, 0 deletions

diff --git a/tex/preamble.tex b/tex/preamble.tex
index b916cf1..a583a3b 100644
--- a/tex/preamble.tex
+++ b/tex/preamble.tex
@@ -1,4 +1,9 @@
 \usepackage[utf8]{inputenc}
 
 \usepackage{amssymb}
+\usepackage{xspace}
 \usepackage{amsmath}
+\usepackage{mathrsfs}
+
+\newcommand*{\ca}[1]{\ensuremath{\mathbf{#1}}\xspace}
+\renewcommand{\implies}{\rightarrow}