Get the unwrap field from a dirabsdeclor-paren.
(dirabsdeclor-paren->unwrap x) → unwrap
This is an ordinary field accessor created by fty::defprod.
Function:
(defun dirabsdeclor-paren->unwrap$inline (x) (declare (xargs :guard (dirabsdeclorp x))) (declare (xargs :guard (equal (dirabsdeclor-kind x) :paren))) (let ((__function__ 'dirabsdeclor-paren->unwrap)) (declare (ignorable __function__)) (mbe :logic (b* ((x (and (equal (dirabsdeclor-kind x) :paren) x))) (absdeclor-fix (std::da-nth 0 (cdr x)))) :exec (std::da-nth 0 (cdr x)))))
Theorem:
(defthm absdeclorp-of-dirabsdeclor-paren->unwrap (b* ((unwrap (dirabsdeclor-paren->unwrap$inline x))) (absdeclorp unwrap)) :rule-classes :rewrite)
Theorem:
(defthm dirabsdeclor-paren->unwrap$inline-of-dirabsdeclor-fix-x (equal (dirabsdeclor-paren->unwrap$inline (dirabsdeclor-fix x)) (dirabsdeclor-paren->unwrap$inline x)))
Theorem:
(defthm dirabsdeclor-paren->unwrap$inline-dirabsdeclor-equiv-congruence-on-x (implies (dirabsdeclor-equiv x x-equiv) (equal (dirabsdeclor-paren->unwrap$inline x) (dirabsdeclor-paren->unwrap$inline x-equiv))) :rule-classes :congruence)
Theorem:
(defthm dirabsdeclor-paren->unwrap-when-wrong-kind (implies (not (equal (dirabsdeclor-kind x) :paren)) (equal (dirabsdeclor-paren->unwrap x) (absdeclor-fix nil))))