diff -r e01015e49041 -r 6226261144d7 etc/abbrevs
--- a/etc/abbrevs	Tue Dec 29 23:04:53 2015 +0100
+++ b/etc/abbrevs	Tue Dec 29 23:20:11 2015 +0100
@@ -5,3 +5,6 @@
 "---->" = "---->"
 "----->" = "----->"
 "===>" = "===>"
+
+(*HOL-NSA*)
+"---->" = "\<longlonglongrightarrow>\<^sub>N\<^sub>S"