diff -r 87cb7e641ba5 -r 9668764224a7 etc/isar-keywords-ZF.el
--- a/etc/isar-keywords-ZF.el	Fri Dec 09 15:25:29 2005 +0100
+++ b/etc/isar-keywords-ZF.el	Fri Dec 09 15:25:52 2005 +0100
@@ -201,6 +201,7 @@
     "case_eqns"
     "con_defs"
     "concl"
+    "constants"
     "constrains"
     "contains"
     "defined_by"
@@ -208,7 +209,6 @@
     "depending_on"
     "domains"
     "elimination"
-    "extracting"
     "file"
     "files"
     "fixes"