Add expression for Isabelle2009
tree607f5c8fc64fa753408cecdda5fad1b718b76ed8
-rw-r--r-- 1650 COPYING
-rw-r--r-- 1 STABLE
-rw-r--r-- 4 VERSION
-rw-r--r-- 41 default.nix
drwxr-xr-x - doc
drwxr-xr-x - maintainers
drwxr-xr-x - pkgs