diff --git a/ligatures.txt b/ligatures.txt
new file mode 100644
index 0000000..42d980b
--- /dev/null
+++ b/ligatures.txt
@@ -0,0 +1,13 @@
+a<->b
+a->b 
+a<-b 
+a=>b 
+a<=b 
+a++b 
+a!=b 
+a!==b 
+a===b 
+a>>=b 
+a=<<b
+a<=>b
+a==b