diff --git a/.gitignore b/.gitignore
index c1ddc79..ec5574b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,7 +11,6 @@
 *.cb
 *.cb2
 .*.lb
-Mathe_Grundlagen.pdf
 
 ## Intermediate documents:
 *.dvi
diff --git a/Mathe_Grundlagen.pdf b/Mathe_Grundlagen.pdf
new file mode 100644
index 0000000..0d37bc9
Binary files /dev/null and b/Mathe_Grundlagen.pdf differ