perm filename SAMEF.VAR[F76,JMC] blob sn#252709 filedate 1976-12-09 generic text, type C, neo UTF8
COMMENT āŠ—   VALID 00002 PAGES
C REC  PAGE   DESCRIPTION
C00001 00001
C00002 00002	(DE SAMEFRINGE (X Y) 
C00004 ENDMK
CāŠ—;
(DE SAMEFRINGE (X Y) 
       (OR (AND (NOT (ATOM X))
		(NOT (ATOM Y))
		(SAME (CAR X) (CAR Y) (CDR X) (CDR Y)))
	   (EQ X Y))) 

(DE SAME (X Y U V) 
       (COND ((AND (ATOM X) (ATOM Y)) (AND (EQ X Y) (SAMEFRINGE U V)))
	     (T (SAME (COND ((ATOM X) X) (T (CAR X)))
		      (COND ((ATOM Y) Y) (T (CAR Y)))
		      (COND ((ATOM X) U) (T (CONS (CDR X) U)))
		      (COND ((ATOM Y) V) (T (CONS (CDR Y) V)))))))