[Rd] binary form of is() contradicts its unary form

[Suzen, Mehmet]

On 30 November 2017 at 14:04, Iñaki Úcar <i.ucar86 at gmail.com> wrote:
>
> Am I supposed to read every reference on a man page just to know what
> to expect from a function?
>

If the reference is from John Chamber, you are supposed to read it.
It is not always possible for maintainers to document everything on a man page.