Recognizer for abnf::tree-list-tuple9-result structures.
(abnf::tree-list-tuple9-resultp acl2::x) → *
Function:
(defun abnf::tree-list-tuple9-resultp (acl2::x) (declare (xargs :guard t)) (let ((__function__ 'abnf::tree-list-tuple9-resultp)) (declare (ignorable __function__)) (cond ((abnf::tree-list-tuple9p acl2::x) (b* ((get acl2::x)) (abnf::tree-list-tuple9p get))) (t (b* ((get acl2::x)) (reserrp get))))))
Theorem:
(defthm abnf::consp-when-tree-list-tuple9-resultp (implies (abnf::tree-list-tuple9-resultp acl2::x) (consp acl2::x)) :rule-classes :compound-recognizer)