(vl-merged-index-p x) → *
Function:
(defun vl-merged-index-p (x) (declare (xargs :guard t)) (let ((__function__ 'vl-merged-index-p)) (declare (ignorable __function__)) (or (not x) (natp x) (and (consp x) (natp (car x)) (natp (cdr x)) (< (car x) (cdr x))))))