lat? and atom? not in guile?

[Joshua Branson]

Hello,

This question comes from a non-scheme guy.  I'm not trying to be
critical of guile.  I'm just curious.

So I have the book "The Little Schemer".  The book describes the
procedures: "lat?" and "atom?".  Surprisingly, guile does not seem to
define these procedures by default.  I had assumed that these procedures
were apart of standard scheme, but I guess that is not the case.

Is there any plan to define these procedures?

Thanks,

Joshua