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(slib.info)Non-List functions

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Non-List functions
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 - Function: and? arg1 ...
     `and?' checks to see if all its arguments are true.  If they are,
     `and?' returns `#t', otherwise, `#f'.  (In contrast to `and', this
     is a function, so all arguments are always evaluated and in an
     unspecified order.)

     Example:
          (and? 1 2 3)
             => #t
          (and #f 1 2)
             => #f

 - Function: or? arg1 ...
     `or?' checks to see if any of its arguments are true.  If any is
     true, `or?' returns `#t', and `#f' otherwise.  (To `or' as `and?'
     is to `and'.)

     Example:
          (or? 1 2 #f)
             => #t
          (or? #f #f #f)
             => #f

 - Function: atom? object
     Returns `#t' if OBJECT is not a pair and `#f' if it is pair.
     (Called `atom' in Common LISP.)
          (atom? 1)
             => #t
          (atom? '(1 2))
             => #f
          (atom? #(1 2))   ; dubious!
             => #t