(1) A debt or claim must be proved formally if the liquidator, in accordance with the regulations, requires it to be proved formally.
(2) A debt or claim that is not required to be proved formally:
(a) may be proved formally; or
(b) may be proved in some other way, subject to compliance with the requirements of the regulations (if any) relating to the informal proof of debts and claims.
(3) A debt or claim is proved formally if it satisfies the requirements of the regulations relating to the formal proof of debts and claims.