 This is a promising start. It is undeniable that English speakers have the procedure of using ‘The door is closed’ to mean that the door is closed. That is (one of the many) things we do with that sentence. So, assuming we accept the explication of utterer’s meaning in terms of M-intentions, it undeniable that English speakers have the procedure of using that sentence to M-intend with regard to the proposition that the door is closed. This yields the explanatory payoff described earlier. We can see communication as a rational activity in which an utterer intends to produce certain results and audiences reason their way to those results via their recognition of the utterer’s intention to produce that very result.