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Visibility

Visibility-kind

Get the kind (tag) of a visibility structure.

Signature
(visibility-kind x) → kind
Arguments: x — Guard (visibilityp x).

Definitions and Theorems

Function: visibility-kind$inline

(defun visibility-kind$inline (x)
  (declare (xargs :guard (visibilityp x)))
  (let ((__function__ 'visibility-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :public))
                       :public)
                      ((eq (car x) :private) :private)
                      (t :constant))
         :exec (car x))))

Theorem: visibility-kind-possibilities

(defthm visibility-kind-possibilities
  (or (equal (visibility-kind x) :public)
      (equal (visibility-kind x) :private)
      (equal (visibility-kind x) :constant))
  :rule-classes
  ((:forward-chaining :trigger-terms ((visibility-kind x)))))