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