Get the kind (tag) of a array-type structure.
(array-type-kind x) → kind
Function:
(defun array-type-kind$inline (x) (declare (xargs :guard (array-typep x))) (let ((__function__ 'array-type-kind)) (declare (ignorable __function__)) (mbe :logic (cond ((or (atom x) (eq (car x) :primitive)) :primitive) ((eq (car x) :class) :class) (t :variable)) :exec (car x))))
Theorem:
(defthm array-type-kind-possibilities (or (equal (array-type-kind x) :primitive) (equal (array-type-kind x) :class) (equal (array-type-kind x) :variable)) :rule-classes ((:forward-chaining :trigger-terms ((array-type-kind x)))))