		Search-engine friendly clone of the ACL2 documentation.

Fty-info

Fty-info->guards

Get the guards field from a fty-info.

Signature
(fty-info->guards x) → guards
Arguments: x — Guard (fty-info-p x).
Returns: guards — Type (symbol-listp guards).

This is an ordinary field accessor created by defprod.

Definitions and Theorems

Function: fty-info->guards$inline

(defun fty-info->guards$inline (x)
  (declare (xargs :guard (fty-info-p x)))
  (declare (xargs :guard t))
  (let ((acl2::__function__ 'fty-info->guards))
    (declare (ignorable acl2::__function__))
    (mbe :logic
         (b* ((x (and t x)))
           (symbol-list-fix (cdr (std::da-nth 3 x))))
         :exec (cdr (std::da-nth 3 x)))))

Theorem: symbol-listp-of-fty-info->guards

(defthm symbol-listp-of-fty-info->guards
  (b* ((guards (fty-info->guards$inline x)))
    (symbol-listp guards))
  :rule-classes :rewrite)

Theorem: fty-info->guards$inline-of-fty-info-fix-x

(defthm fty-info->guards$inline-of-fty-info-fix-x
  (equal (fty-info->guards$inline (fty-info-fix x))
         (fty-info->guards$inline x)))

Theorem: fty-info->guards$inline-fty-info-equiv-congruence-on-x

(defthm fty-info->guards$inline-fty-info-equiv-congruence-on-x
  (implies (fty-info-equiv x x-equiv)
           (equal (fty-info->guards$inline x)
                  (fty-info->guards$inline x-equiv)))
  :rule-classes :congruence)