		Search-engine friendly clone of the ACL2 documentation.

Reserr

Reserrp

Recognizer for reserr structures.

Signature
(reserrp x) → *

Definitions and Theorems

Function: reserrp

(defun reserrp (x)
  (declare (xargs :guard t))
  (let ((__function__ 'reserrp))
    (declare (ignorable __function__))
    (and (consp x)
         (eq (car x) :error)
         (mbe :logic (and (alistp (cdr x))
                          (equal (strip-cars (cdr x)) '(info)))
              :exec (alist-with-carsp (cdr x) '(info)))
         (b* ((info (cdr (std::da-nth 0 (cdr x)))))
           (acl2::any-p info)))))

Theorem: consp-when-reserrp

(defthm consp-when-reserrp
  (implies (reserrp x) (consp x))
  :rule-classes :compound-recognizer)