Been a while since I've done Lisp seriously, but I don't believe that's possible, at least in Common Lisp (SBCL). While if responds to symbol function: * (sy

Been a while since I've done Lisp seriously, but I don't believe that's possible, at least in Common Lisp (SBCL). While if responds to symbol function: * (symbol-function 'if) #<CLOSURE (:SPECIAL IF) {1000C5084B}> SBCL refuses to set that value to an alias: * (setf (symbol-function 'foo) (symbol-function 'if)) #<THREAD "main thread" RUNNING {10005205B3}>: #<CLOSURE (:SPECIAL IF) {1000C5084B}> is not acceptable to (SETF SYMBOL-FUNCTION) Trying this with regular functions works as intended: * (setf (symbol-function 'bar) (symbol-function 'mapcar)) #<FUNCTION MAPCAR> * (bar #'1+ '(1 2 3)) (2 3 4) Special forms are, well, special and a lot of the regular parts of lisp doesn't work with them.