2 ms·
P is shaped like a question mark, though I think it was retronymed to stand for "Predicate"
by bandrami 7y ago
P is shaped like a question mark, though I think it was retronymed to stand for "Predicate"
- NateEag 7y agoI think "predicate" is the original meaning of that postfix. Emacs Lisp, at least, can use question marks in names without batting an eyelash. I see no reason that would not have been true for Lisps generally since their birth.