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Aexp

Aexp-kind

Get the kind (tag) of a aexp structure.

Signature
(aexp-kind x) → kind
Arguments: x — Guard (aexpp x).

Definitions and Theorems

Function: aexp-kind$inline

(defun aexp-kind$inline (x)
  (declare (xargs :guard (aexpp x)))
  (let ((__function__ 'aexp-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :const))
                       :const)
                      ((eq (car x) :var) :var)
                      ((eq (car x) :add) :add)
                      (t :mul))
         :exec (car x))))

Theorem: aexp-kind-possibilities

(defthm aexp-kind-possibilities
 (or (equal (aexp-kind x) :const)
     (equal (aexp-kind x) :var)
     (equal (aexp-kind x) :add)
     (equal (aexp-kind x) :mul))
 :rule-classes ((:forward-chaining :trigger-terms ((aexp-kind x)))))