Never has a Lisp used = for assignment. It's always a variant of "set". Here is a page with various call-graphs for new.arc along with visualization tools: ht

Never has a Lisp used = for assignment. It's always a variant of "set". Here is a page with various call-graphs for new.arc along with visualization tools: http://arclanguage.org/item?id=8876 http://arclanguage.org/item?id=8876 [Edit: Whoever downvoting me, could you please contribute a pointer to a Lisp that uses '=' as assignment other than Arc?]