24 Oct
2011
24 Oct
'11
2:56 p.m.
Hello all. My apologies for this not being math related. On the PDP-1, Lisp did not seem to have the compositions of CAR and CDR (namely CAAR, CADR, CDAR, CAAAR, ...), as far as documentation goes. The PDP-6 seemed to indeed have these functions. I am wondering if any Lisps which pre-date the PDP-6 had these functions. I ask for historical clarity. Google isn't helping me much. Thanks, Robert Smith