(define (Haiku? x) . . .

[Hen Hanna]

(define (Haiku? x)
(and (= (length (car x)) 5)
(= (length (cadr x)) 7)
(= (length (caddr x)) 5)))


Haiku is defined:
[of length five in first and third;
seven in second].

[Hen Hanna]

(define (Haiku? x)
(and (= (length (car x)) 5)
(= (length (cadr x)) 7)
(= (length (caddr x)) 5)))
[of length five in first and third;
seven in second].

slightly better , written as:

(define (Haiku? x)
(and
(= (length (car x)) 5)
(= (length (car (cdr x))) (1+ 6) )
(= (length (caddr x)) 5)))

[Tristan Wibberley]

On 16/05/2023 02:07, Hen Hanna wrote:
5 > (define (Haiku? x)
7 > (and (= (length (car x)) 5)
so close > (= (length (cadr x)) 7)
too many lines > (= (length (caddr x)) 5)))