Get the kind (tag) of a scspecseq structure.
(scspecseq-kind x) → kind
Function:
(defun scspecseq-kind$inline (x) (declare (xargs :guard (scspecseqp x))) (let ((__function__ 'scspecseq-kind)) (declare (ignorable __function__)) (mbe :logic (cond ((or (atom x) (eq (car x) :none)) :none) (t :extern)) :exec (car x))))
Theorem:
(defthm scspecseq-kind-possibilities (or (equal (scspecseq-kind x) :none) (equal (scspecseq-kind x) :extern)) :rule-classes ((:forward-chaining :trigger-terms ((scspecseq-kind x)))))