		Search-engine friendly clone of the ACL2 documentation.

Stat

Stat->error

Get the error field from a stat.

Signature
(stat->error x) → error
Arguments: x — Guard (statp x).
Returns: error — Type (booleanp error).

This is an ordinary field accessor created by fty::defprod.

Definitions and Theorems

Function: stat->error$inline

(defun stat->error$inline (x)
  (declare (xargs :guard (statp x)))
  (declare (xargs :guard t))
  (let ((__function__ 'stat->error))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and t x)))
           (acl2::bool-fix (cdr (std::da-nth 3 x))))
         :exec (cdr (std::da-nth 3 x)))))

Theorem: booleanp-of-stat->error

(defthm booleanp-of-stat->error
  (b* ((error (stat->error$inline x)))
    (booleanp error))
  :rule-classes :rewrite)

Theorem: stat->error$inline-of-stat-fix-x

(defthm stat->error$inline-of-stat-fix-x
  (equal (stat->error$inline (stat-fix x))
         (stat->error$inline x)))

Theorem: stat->error$inline-stat-equiv-congruence-on-x

(defthm stat->error$inline-stat-equiv-congruence-on-x
  (implies (stat-equiv x x-equiv)
           (equal (stat->error$inline x)
                  (stat->error$inline x-equiv)))
  :rule-classes :congruence)