/src/HOL/Library/Cancellation/
drwxr-xr-x [up]
-rw-r--r-- 2018-05-15 13:57 +0200 3084 cancel.ML
-rw-r--r-- 2018-05-15 13:57 +0200 5886 cancel_data.ML
-rw-r--r-- 2018-05-15 13:57 +0200 1993 cancel_simprocs.ML