2 Popes

 ‘ The only sane conclusion is, therefore, that munus and ministerium are distinct terms with different meanings. They cannot substitute for one another in any sentence in which their proper senses are employed. Munus can substitute for officium, when officium means that which regards a title or dignity or ecclesiastical office.”
– Br. Alexis Bugnolo

Latin language expert Br. Alexis Bugnolo says the only correct way to approach the validity or invalidity of Pope Benedict XVI’s resignation is an objective reading of what the two words ministerium and munus mean by means of using canon 17’s criteria and not a subjective reading of what the two words may possibly have meant in the mind of Benedict:

“Canon 17 requires that Canon 332 S2 be read in accord with the meaning of canon 145 S1  and canon 41… requires that ministerium and munus be understood as referring to two different things.”
(From Rome, “Ganswein, Brandmuller & Burke: Please read Canon 17, February 14, 2019).’