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