Get the val field from a reserr-option-some.
(reserr-option-some->val x) → val
This is an ordinary field accessor created by defprod.
Function:
(defun reserr-option-some->val$inline (x) (declare (xargs :guard (reserr-optionp x))) (declare (xargs :guard x)) (let ((__function__ 'reserr-option-some->val)) (declare (ignorable __function__)) (mbe :logic (b* ((x (and x x))) (reserr-fix x)) :exec x)))
Theorem:
(defthm reserrp-of-reserr-option-some->val (b* ((val (reserr-option-some->val$inline x))) (reserrp val)) :rule-classes :rewrite)
Theorem:
(defthm reserr-option-some->val$inline-of-reserr-option-fix-x (equal (reserr-option-some->val$inline (reserr-option-fix x)) (reserr-option-some->val$inline x)))
Theorem:
(defthm reserr-option-some->val$inline-reserr-option-equiv-congruence-on-x (implies (reserr-option-equiv x x-equiv) (equal (reserr-option-some->val$inline x) (reserr-option-some->val$inline x-equiv))) :rule-classes :congruence)
Theorem:
(defthm reserr-option-some->val-when-wrong-kind (implies (not x) (equal (reserr-option-some->val x) (reserr-fix nil))))