That convention, according to Richard Gabriel, came from Muddle/MDL (as did Zork) [page 11]:
http://www.dreamsongs.com/Files/HOPL2-Uncut.pdf -Jon On Sun, Sep 18, 2011 at 8:42 PM, Charlie Turner <charli...@gmail.com> wrote: > Common Lisp's convention w.r.t predicate names appears to be all about the p > or -p suffixes. My question is: Did older lisps use the '?' convention > before CL, or was Scheme the first to conventionalise the use of ? in > predicates? > > Sorry for the off-topic question, I couldn't find any definitive answers > online, and figured there's bound to be someone here that lived through the > development. > > Thanks, > Charlie. > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/users > _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
