Question: Given the definitions below ( LOWER , UPPER and foo ) , ;; write the step - by - step evaluation of the following expression:
Given the definitions below LOWER UPPER and foo
;; write the stepbystep evaluation of the following expression:
;;
;; foo
;;
;; Be sure to show every intermediate evaluation step, including the original
;; expression and the final result. The steps should NOT be in comments.
;;
;; Stepping questions like this one have only one correct answer. The goal
;; of this problem is to assess whether you have learned the exact BSL step
;; by step evaluation rules; not whether you can figure out the final
;; result of an expression.
;;
define LOWER
define UPPER
define foo x y
if and x LOWER x UPPER
x y
x y
foo
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