diff -r a28b5fc129b7 -r 22235e4dbe5f src/Tools/isac/Knowledge/Calculus.thy
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Tools/isac/Knowledge/Calculus.thy	Wed Aug 25 16:20:07 2010 +0200
@@ -0,0 +1,4 @@
+
+Calculus = Real +
+
+end
\ No newline at end of file