DIR: core 2
DIR: isect 1
DIR: well fnd
DIR: int 1
DIR: bool 1
DIR: union
DIR: sqequal 1
DIR: fun 1
DIR: rfunction 1
DIR: rel 1
DIR: quot 1
DIR: int 2
DIR: list 1
DIR: num thy 1
DIR: prog 1
DIR: subtype 1
DIR: experiments