(update-parstate->chars-length length parstate) → parstate
Function:
(defun update-parstate->chars-length (length parstate) (declare (xargs :stobjs (parstate))) (declare (xargs :guard (natp length))) (let ((__function__ 'update-parstate->chars-length)) (declare (ignorable __function__)) (b* ((parstate (parstate-fix parstate))) (raw-update-parstate->chars-length (nfix length) parstate))))
Theorem:
(defthm parstatep-of-update-parstate->chars-length (b* ((parstate (update-parstate->chars-length length parstate))) (parstatep parstate)) :rule-classes :rewrite)
Theorem:
(defthm update-parstate->chars-length-of-nfix-length (equal (update-parstate->chars-length (nfix length) parstate) (update-parstate->chars-length length parstate)))
Theorem:
(defthm update-parstate->chars-length-nat-equiv-congruence-on-length (implies (acl2::nat-equiv length length-equiv) (equal (update-parstate->chars-length length parstate) (update-parstate->chars-length length-equiv parstate))) :rule-classes :congruence)
Theorem:
(defthm update-parstate->chars-length-of-parstate-fix-parstate (equal (update-parstate->chars-length length (parstate-fix parstate)) (update-parstate->chars-length length parstate)))
Theorem:
(defthm update-parstate->chars-length-parstate-equiv-congruence-on-parstate (implies (parstate-equiv parstate parstate-equiv) (equal (update-parstate->chars-length length parstate) (update-parstate->chars-length length parstate-equiv))) :rule-classes :congruence)