Hello I tried another version but it doesnt work. Can anyone help me? Using the
"and" function didnt help me.
#lang racket
(define (checker wort liste1 liste2)
(cond ((and (equal? (first liste1) wort)
(equal? (first liste2) wort))
'(true))
((or (null? liste1)
(null? liste2))
'(false))
((equal? (first liste1) wort) (checker wort (rest liste2) (rest
liste2)))
((equal? (first liste2) wort) (checker wort (rest liste1) (rest
liste1)))))
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