Is it a list ?

[Marc Ernst Eddy van Woerkom]

>   Of course the 'is_list' test could have been given the more correct name
>   'is_nil_or_cons_cell', but when you've typed that enough times, you tend
>   to say "screw correctness, I want a shorter name for this thing!". 

This made me curious. I just wanted to look up the definition of is_list/1.
Where am I supposed to find the authorative documentation?

E.g. I had a look on the man page which lists some BIFs (using erl -man erlang),
but I found nothing here.

Regards,
Marc