Get the arguments field from a class-type-nested.
(class-type-nested->arguments x) → arguments
This is an ordinary field accessor created by fty::defprod.
Function:
(defun class-type-nested->arguments$inline (x) (declare (xargs :guard (class-typep x))) (declare (xargs :guard (equal (class-type-kind x) :nested))) (let ((__function__ 'class-type-nested->arguments)) (declare (ignorable __function__)) (mbe :logic (b* ((x (and (equal (class-type-kind x) :nested) x))) (type-argument-list-fix (std::da-nth 2 (cdr x)))) :exec (std::da-nth 2 (cdr x)))))
Theorem:
(defthm type-argument-listp-of-class-type-nested->arguments (b* ((arguments (class-type-nested->arguments$inline x))) (type-argument-listp arguments)) :rule-classes :rewrite)
Theorem:
(defthm class-type-nested->arguments$inline-of-class-type-fix-x (equal (class-type-nested->arguments$inline (class-type-fix x)) (class-type-nested->arguments$inline x)))
Theorem:
(defthm class-type-nested->arguments$inline-class-type-equiv-congruence-on-x (implies (class-type-equiv x x-equiv) (equal (class-type-nested->arguments$inline x) (class-type-nested->arguments$inline x-equiv))) :rule-classes :congruence)
Theorem:
(defthm class-type-nested->arguments-when-wrong-kind (implies (not (equal (class-type-kind x) :nested)) (equal (class-type-nested->arguments x) (type-argument-list-fix nil))))