
((wrap (vau root_env (quote)
((wrap (vau (let1)
(let1 lambda (vau se (p b1) (wrap (eval (array vau p b1) se)))
(let1 current-env (vau de () de)
(let1 cons (lambda (h t) (concat (array h) t))
(let1 Y (lambda (f3)
    ((lambda (x1) (x1 x1))
     (lambda (x2) (f3 (wrap (vau app_env (& y) (lapply (x2 x2) y app_env)))))))
(let1 vY (lambda (f)
    ((lambda (x3) (x3 x3))
     (lambda (x4) (f (vau de1 (& y) (vapply (x4 x4) y de1))))))
(let1 let (vY (lambda (recurse) (vau de2 (vs b) (cond (= (len vs) 0) (eval b de2)
                                                     true           (vapply let1 (array (idx vs 0) (idx vs 1) (array recurse (slice vs 2 -1) b)) de2)))))
 (let (
         rec-lambda (vau se (n p b) (eval (array Y (array lambda (array n) (array lambda p b))) se))

         fact (rec-lambda fact (n) (cond (= 0 n)   1
                                         (= 1 n)   1
                                         true      (* n (fact (- n 1)))))

         monad  (array 'write  1 "enter number to fact: " (vau (written code)
                      (array 'read 0 60 (vau (data code)
                            (array 'exit (fact (read-string data)))
                      ))

                ))

 ) monad)
; end of all lets
))))))
; impl of let1
)) (vau de (s v b) (eval (array (array wrap (array vau (array s) b)) v) de)))
; impl of quote
)) (vau (x5) x5))
