Get the kind (tag) of a type structure.
(type-kind x) → kind
Function:
(defun type-kind$inline (x) (declare (xargs :guard (typep x))) (let ((__function__ 'type-kind)) (declare (ignorable __function__)) (mbe :logic (cond ((or (atom x) (eq (car x) :boolean)) :boolean) ((eq (car x) :character) :character) ((eq (car x) :string) :string) ((eq (car x) :integer) :integer) ((eq (car x) :set) :set) ((eq (car x) :sequence) :sequence) ((eq (car x) :map) :map) ((eq (car x) :option) :option) (t :defined)) :exec (car x))))
Theorem:
(defthm type-kind-possibilities (or (equal (type-kind x) :boolean) (equal (type-kind x) :character) (equal (type-kind x) :string) (equal (type-kind x) :integer) (equal (type-kind x) :set) (equal (type-kind x) :sequence) (equal (type-kind x) :map) (equal (type-kind x) :option) (equal (type-kind x) :defined)) :rule-classes ((:forward-chaining :trigger-terms ((type-kind x)))))