Get the src4 field from a op/en-p.
(op/en-p->src4 x) → src4
This is an ordinary field accessor created by defprod.
Function:
(defun op/en-p->src4$inline (x) (declare (xargs :guard (op/en-p-p x))) (declare (xargs :guard t)) (let ((__function__ 'op/en-p->src4)) (declare (ignorable __function__)) (mbe :logic (b* ((x (and t x))) (keyword-list-fix (cdr (std::da-nth 3 x)))) :exec (cdr (std::da-nth 3 x)))))
Theorem:
(defthm keyword-listp-of-op/en-p->src4 (b* ((src4 (op/en-p->src4$inline x))) (acl2::keyword-listp src4)) :rule-classes :rewrite)
Theorem:
(defthm op/en-p->src4$inline-of-op/en-p-fix-x (equal (op/en-p->src4$inline (op/en-p-fix x)) (op/en-p->src4$inline x)))
Theorem:
(defthm op/en-p->src4$inline-op/en-p-equiv-congruence-on-x (implies (op/en-p-equiv x x-equiv) (equal (op/en-p->src4$inline x) (op/en-p->src4$inline x-equiv))) :rule-classes :congruence)