:set -fprint-explicit-foralls
:print fmap
:t fmap
:t _t1
:print show
:t show
:t _t2
_t2 "foo"
_t1 _t2 [7, 42]
:print _t1
:t _t3
:print _t2
:t _t4
_t3 _t4 [7, 42]
:print id
:t id
:t _t5
:print print
:t print
:t _t6