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Output-item

Output-item->get

Get the get field from a output-item.

Signature
(output-item->get x) → get
Arguments: x — Guard (output-itemp x).
Returns: get — Type (output-expressionp get).

This is an ordinary field accessor created by fty::defprod.

Definitions and Theorems

Function: output-item->get$inline

(defun output-item->get$inline (x)
  (declare (xargs :guard (output-itemp x)))
  (declare (xargs :guard t))
  (let ((__function__ 'output-item->get))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and t x)))
           (output-expression-fix (cdr (std::da-nth 0 (cdr x)))))
         :exec (cdr (std::da-nth 0 (cdr x))))))

Theorem: output-expressionp-of-output-item->get

(defthm output-expressionp-of-output-item->get
  (b* ((get (output-item->get$inline x)))
    (output-expressionp get))
  :rule-classes :rewrite)

Theorem: output-item->get$inline-of-output-item-fix-x

(defthm output-item->get$inline-of-output-item-fix-x
  (equal (output-item->get$inline (output-item-fix x))
         (output-item->get$inline x)))

Theorem: output-item->get$inline-output-item-equiv-congruence-on-x

(defthm output-item->get$inline-output-item-equiv-congruence-on-x
  (implies (output-item-equiv x x-equiv)
           (equal (output-item->get$inline x)
                  (output-item->get$inline x-equiv)))
  :rule-classes :congruence)