This page is part of the web mail archives of SRFI 1 from before July 7th, 2015. The new archives for SRFI 1 contain all messages, not just those from before July 7th, 2015.
May I suggest the following addition to the SRFI-1 list library, Common Lisp's LDIFF: I think a reasonable definition is: (define (ldiff l subl) (cond ((null? l) '()) ((eq? (cdr l) subl) (list (car l))) (else (cons (car l) (ldiff (cdr l) subl))))) (I sent this as private email before, but am now sending it to the mailing list)