perm filename LOSS.8[QLA,LSP] blob sn#728057 filedate 1983-10-11 generic text, type C, neo UTF8
COMMENT āŠ—   VALID 00002 PAGES
C REC  PAGE   DESCRIPTION
C00001 00001
C00002 00002
C00003 ENDMK
CāŠ—;

(m-defun Y (f)
	 (let ((h (lambda (g)
			  (f (lambda (x) (funcall (g g) x))))))  
	      (lambda (x) (funcall (h h) x))))

(startup 16)

(let ((len 
       (y
 	(lambda (f)
		(lambda (x)
			(cond ((null x) 0)
			      (t 
			       (1+ (f (cdr x))))))))))
     (len '(1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)))