; I'm having hard time to find a way of escaping the '(' and ')' characters
((= (first L) ) (rest L))
;here is the idea: detect the lower well formed expression: begin with (op and finish with ) where op = + - * / and have only two parameters that are atoms.
; I'm having hard time to find a way of escaping the '(' and ')' characters
((= (first L) ) (rest L))
;here is the idea: detect the lower well formed expression: begin with (op and finish with ) where op = + - * / and have only two parameters that are atoms.