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Aig-symbolic-arithmetic

Sv::aig-lognand-ss

Signature
(sv::aig-lognand-ss a b) → nand
Arguments: a — Guard (true-listp a).; b — Guard (true-listp b).
Returns: nand — Type (true-listp nand).

Definitions and Theorems

Function: aig-lognand-ss

(defun sv::aig-lognand-ss (a b)
  (declare (xargs :guard (and (true-listp a) (true-listp b))))
  (let ((__function__ 'sv::aig-lognand-ss))
    (declare (ignorable __function__))
    (b* (((mv af ar aend) (first/rest/end a))
         ((mv bf br bend) (first/rest/end b))
         (lsb (acl2::aig-nand af bf))
         ((when (and aend bend))
          (sv::aig-sterm lsb))
         (rest (sv::aig-lognand-ss ar br)))
      (sv::aig-scons lsb rest))))

Theorem: true-listp-of-aig-lognand-ss

(defthm sv::true-listp-of-aig-lognand-ss
  (b* ((nand (sv::aig-lognand-ss a b)))
    (true-listp nand))
  :rule-classes :type-prescription)

Theorem: aig-lognand-ss-correct

(defthm sv::aig-lognand-ss-correct
  (b* ((nand (sv::aig-lognand-ss a b)))
    (and (equal (sv::aig-list->s nand env)
                (lognand (sv::aig-list->s a env)
                         (sv::aig-list->s b env))))))