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Pointer-listp

Pointer-listp-basics

Basic theorems about pointer-listp, generated by std::deflist.

Definitions and Theorems

Theorem: pointer-listp-of-cons

(defthm pointer-listp-of-cons
  (equal (pointer-listp (cons acl2::a acl2::x))
         (and (pointerp acl2::a)
              (pointer-listp acl2::x)))
  :rule-classes ((:rewrite)))

Theorem: pointer-listp-of-cdr-when-pointer-listp

(defthm pointer-listp-of-cdr-when-pointer-listp
  (implies (pointer-listp (double-rewrite acl2::x))
           (pointer-listp (cdr acl2::x)))
  :rule-classes ((:rewrite)))

Theorem: pointer-listp-when-not-consp

(defthm pointer-listp-when-not-consp
  (implies (not (consp acl2::x))
           (equal (pointer-listp acl2::x)
                  (not acl2::x)))
  :rule-classes ((:rewrite)))

Theorem: pointerp-of-car-when-pointer-listp

(defthm pointerp-of-car-when-pointer-listp
  (implies (pointer-listp acl2::x)
           (iff (pointerp (car acl2::x))
                (or (consp acl2::x) (pointerp nil))))
  :rule-classes ((:rewrite)))

Theorem: true-listp-when-pointer-listp-compound-recognizer

(defthm true-listp-when-pointer-listp-compound-recognizer
  (implies (pointer-listp acl2::x)
           (true-listp acl2::x))
  :rule-classes :compound-recognizer)

Theorem: pointer-listp-of-list-fix

(defthm pointer-listp-of-list-fix
  (implies (pointer-listp acl2::x)
           (pointer-listp (list-fix acl2::x)))
  :rule-classes ((:rewrite)))

Theorem: pointer-listp-of-rev

(defthm pointer-listp-of-rev
  (equal (pointer-listp (rev acl2::x))
         (pointer-listp (list-fix acl2::x)))
  :rule-classes ((:rewrite)))