new

[book_chic.git] / book.tex

diff --git a/book.tex b/book.tex
index 0cdc1fd2cac72b2beb6add5fce4fe138f31fdd60..83adc5b29330cef2051c7f4445734dbfbd06ae42 100644 (file)
--- a/book.tex
+++ b/book.tex
@@ -20,6 +20,7 @@
 \usepackage{type1cm}
 \usepackage{caption}
 \usepackage[utf8]{inputenc}
+\usepackage{amssymb}
 
 \usepackage{makeidx}         % allows index generation
 \usepackage{graphicx}        % standard LaTeX graphics tool