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