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Nat-bool-list-upper-boundp

Signature
(nat-bool-list-upper-boundp bound x) → *
Arguments: bound — Guard (natp bound).; x — Guard (nat-bool-listp x).

Definitions and Theorems

Function: nat-bool-list-upper-boundp

(defun nat-bool-list-upper-boundp (bound x)
  (declare (xargs :guard (and (natp bound) (nat-bool-listp x))))
  (let ((__function__ 'nat-bool-list-upper-boundp))
    (declare (ignorable __function__))
    (if (atom x)
        t
      (and (or (booleanp (car x))
               (< (lnfix (car x)) (lnfix bound)))
           (nat-bool-list-upper-boundp bound (cdr x))))))

Theorem: nat-bool-list-upper-boundp-of-list-fix

(defthm nat-bool-list-upper-boundp-of-list-fix
  (equal (nat-bool-list-upper-boundp bound (list-fix x))
         (nat-bool-list-upper-boundp bound x)))

Theorem: nat-bool-list-nonmember-by-upper-bound

(defthm nat-bool-list-nonmember-by-upper-bound
  (implies (and (nat-bool-list-upper-boundp bound x)
                (<= (nfix bound) v)
                (nat-bool-listp x))
           (not (member v (nat-bool-list-nats x)))))

Theorem: nat-bool-list-no-intersection-by-bounds

(defthm nat-bool-list-no-intersection-by-bounds
  (implies (and (nat-bool-list-upper-boundp bound0 x0)
                (nat-bool-list-lower-boundp bound1 x1)
                (<= (nfix bound0) (nfix bound1))
                (nat-bool-listp x0)
                (nat-bool-listp x1))
           (not (intersectp (nat-bool-list-nats x0)
                            (nat-bool-list-nats x1)))))

Theorem: nat-bool-list-upper-boundp-higher

(defthm nat-bool-list-upper-boundp-higher
  (implies (and (nat-bool-list-upper-boundp bound x)
                (<= (nfix bound) (nfix n)))
           (nat-bool-list-upper-boundp n x)))

Theorem: nat-bool-list-upper-boundp-of-nfix-bound

(defthm nat-bool-list-upper-boundp-of-nfix-bound
  (equal (nat-bool-list-upper-boundp (nfix bound)
                                     x)
         (nat-bool-list-upper-boundp bound x)))

Theorem: nat-bool-list-upper-boundp-nat-equiv-congruence-on-bound

(defthm nat-bool-list-upper-boundp-nat-equiv-congruence-on-bound
  (implies (nat-equiv bound bound-equiv)
           (equal (nat-bool-list-upper-boundp bound x)
                  (nat-bool-list-upper-boundp bound-equiv x)))
  :rule-classes :congruence)