どこまでやったけな...。多分この前は、 ((lambda (mk-length) (mk-length mk-length)) (lambda (mk-length) (lambda (l) (cond ((null? l) 0) (else (+ 1 ((mk-length eternity) (cdr l)))))))) を、 ((lambda (mk-length) (lambda (l) (cond ((null? l) 0)…