> (member 2 '( 1 2 3 4 5))
#t
> (member 2 '( 1 2 3 4 5))
(2 3 4 5)
> (member 2 '( 1 2 3 4 2 5))
(2 3 4 2 5)
> (member 20 '( 1 2 3 4 2 5))
#f
> (member 20 '( 1 2 3 4 2 5))
#f
> (member 2 '( 1 2 3 4 2 5))
(2 3 4 2 5)
> (member? 2 '( 1 2 3 4 2 5))
#t
> (or #t (< 2 (/ 5 0)))
#t
> (or "abc" #f)
"abc"
> (and #t #t #f)
#f
> (and #t #t "abc")
"abc"
> (member 2 '( 1 2 3 4 2 5))
(2 3 4 2 5)
> (member 2 '( 1 2 3 4 2 5))
(2 3 4 2 5)
> (from-to 2 20)
(2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20)
> (map 1+ l)
(2 3 4 5 6)
> l
(1 2 3 4 5)
> (map 1+ (map 1+ l))
(3 4 5 6 7)
> l
(1 2 3 4 5)
> (filter odd? l)
(1 3 5)
> (filter zero? l)
()
> (filter (lambda (x) (> x 0)) l)
(1 2 3 4 5)
> (foldr + 0 l)
15
> (foldr * 1 l)
120
> (foldr cons '() l)
(1 2 3 4 5)
> (+ 1 (+ 2 3))
6
> (+ (+ 1 2) 3)
6
> (+ 1 2 3)
6
> (/ 10 2 4 5)
1/4
> (length l)
5
> (append l l)
(1 2 3 4 5 1 2 3 4 5)
> (reverse l)
(5 4 3 2 1)
> (member? 2 l)
#t
> (member? 20 l)
#f
> (map 1+ l)
(2 3 4 5 6)
> (filter odd? l)
(1 3 5)
> (foldl + 0 l)
15
> (foldl * 1 l)
120
> (cons 1 (cons 2 3))
(1 2 . 3)
> (cons (cons 1 2) 3)
((1 . 2) . 3)
> (foldr cons '() l)
(1 2 3 4 5)
> (foldl cons '() l)
(((((() . 1) . 2) . 3) . 4) . 5)
> (reverse l)
(5 4 3 2 1)
> (length (reverse (from-to 1 400000)))
400000
> (length (reverse2 (from-to 1 400000)))
400000
> (maximum l)
5
> (foldl1 + l)
15