Get the guts field from a pinst-quote.
This is an ordinary field accessor created by fty::defprod.
Function:
(defun pinst-quote->guts$inline (x) (declare (xargs :guard (pinst-p x))) (declare (xargs :guard (equal (pinst-kind x) :quote))) (let ((acl2::__function__ 'pinst-quote->guts)) (declare (ignorable acl2::__function__)) (mbe :logic (b* ((x (and (equal (pinst-kind x) :quote) x))) (pinst-fix (std::prod-cdr (cdr x)))) :exec (std::prod-cdr (cdr x)))))
Theorem:
(defthm pinst-p-of-pinst-quote->guts (b* ((guts (pinst-quote->guts$inline x))) (pinst-p guts)) :rule-classes :rewrite)
Theorem:
(defthm pinst-quote->guts$inline-of-pinst-fix-x (equal (pinst-quote->guts$inline (pinst-fix x)) (pinst-quote->guts$inline x)))
Theorem:
(defthm pinst-quote->guts$inline-pinst-equiv-congruence-on-x (implies (pinst-equiv x x-equiv) (equal (pinst-quote->guts$inline x) (pinst-quote->guts$inline x-equiv))) :rule-classes :congruence)
Theorem:
(defthm pinst-quote->guts-when-wrong-kind (implies (not (equal (pinst-kind x) :quote)) (equal (pinst-quote->guts x) (pinst-fix nil))))