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Expr-tools

Vl-zbitlist-p

Signature
(vl-zbitlist-p x) → *
Arguments: x — Guard (vl-bitlist-p x).

Definitions and Theorems

Function: vl-zbitlist-p

(defun vl-zbitlist-p (x)
  (declare (xargs :guard (vl-bitlist-p x)))
  (let ((__function__ 'vl-zbitlist-p))
    (declare (ignorable __function__))
    (if (consp x)
        (and (equal (vl-bit-fix (car x)) :vl-zval)
             (vl-zbitlist-p (cdr x)))
      t)))

Theorem: vl-zbitlist-p-of-vl-bitlist-fix-x

(defthm vl-zbitlist-p-of-vl-bitlist-fix-x
  (equal (vl-zbitlist-p (vl-bitlist-fix x))
         (vl-zbitlist-p x)))

Theorem: vl-zbitlist-p-vl-bitlist-equiv-congruence-on-x

(defthm vl-zbitlist-p-vl-bitlist-equiv-congruence-on-x
  (implies (vl-bitlist-equiv x x-equiv)
           (equal (vl-zbitlist-p x)
                  (vl-zbitlist-p x-equiv)))
  :rule-classes :congruence)