Lisp allows you to mutate, you can certainly write non-mutating code in lisp. Why do you think you need to use mutation with let*? let* is just a sequential let

Lisp allows you to mutate, you can certainly write non-mutating code in lisp. Why do you think you need to use mutation with let*? let* is just a sequential let https://www.lispworks.com/documentation/lw70/CLHS/Body/s_let_l.htm https://www.lispworks.com/documentation/lw70/CLHS/Body/s_let...