and

(and <test1> ...)

Description:

The <test> expressions are evaluated from left

  to right, and the value of the first expression that

  evaluates to a false value is returned.  Any remaining

  expressions are not evaluated.  If all the expressions

  evaluate to true values, the value of the last expression is

  returned.  If there are no expressions then #t is

  returned.

Arguments:

Returns: If all the expressions evaluate to true values, the

value of the last expression is returned.  If there are no

expressions then #t is returned.

Examples:

(and (= 2 2) (> 2 1)) =>  #t

(and (= 2 2) (< 2 1)) =>  #f

(and 1 2 'c '(f g))   =>  (f g)

(and)                 =>  #t

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