Modify the
In the execution this is an array write, but the logical definition is just a thin wrapper for update-nth:
Function:
(defun update-lhss$ai (stobjs::i stobjs::v lhsarr$a) (declare (xargs :guard (and (lhsarr$ap lhsarr$a) (integerp stobjs::i) (<= 0 stobjs::i) (< stobjs::i (lhss$a-length lhsarr$a)) (lhs-p stobjs::v) (stobjs::typep$ stobjs::v (satisfies lhs-p))))) (ec-call (update-nth stobjs::i (lhs-fix$inline stobjs::v) lhsarr$a)))