Get the minor-stack field from a major-frame.
(major-frame->minor-stack x) → minor-stack
This is an ordinary field accessor created by defprod.
Function:
(defun major-frame->minor-stack$inline (x) (declare (xargs :guard (major-frame-p x))) (declare (xargs :guard t)) (let ((__function__ 'major-frame->minor-stack)) (declare (ignorable __function__)) (mbe :logic (b* ((x (and t x))) (minor-stack-fix (cdr (std::da-nth 3 x)))) :exec (cdr (std::da-nth 3 x)))))
Theorem:
(defthm minor-stack-p-of-major-frame->minor-stack (b* ((minor-stack (major-frame->minor-stack$inline x))) (minor-stack-p minor-stack)) :rule-classes :rewrite)
Theorem:
(defthm major-frame->minor-stack$inline-of-major-frame-fix-x (equal (major-frame->minor-stack$inline (major-frame-fix x)) (major-frame->minor-stack$inline x)))
Theorem:
(defthm major-frame->minor-stack$inline-major-frame-equiv-congruence-on-x (implies (major-frame-equiv x x-equiv) (equal (major-frame->minor-stack$inline x) (major-frame->minor-stack$inline x-equiv))) :rule-classes :congruence)