Modalidade epistémica e persistência

Adding bem (lit. ‘well’) to a modalized proposition, as in it is quite possible that he already left, increases the degree of conviction being conveyed. Apparently, this epistemic reinforcement results from presence corresponds expression higher belief than what expressed without bem. Concretely, while é possível que p (‘it p’) indicates possibility, will indicate good possibility. If so, meaning constructions resulting addition proposition can be captured within framework modality analysis Krazter (1991, a.o.), who considers different degrees modality, including notions possibility and This way, understandable why co-occur with weak modals, equivalents or may, but not strong such must have to, since latter value, able reinforced by However, there are counter-arguments hypothesis, which, among other problems, does explain may various types modal operators propositional attitude verbs express as, e.g., certo (‘right’), certo! (‘quite right!’), know, equivalent knows well late. Thus, two questions arise: (i) how sentence an operator? (ii) combine some operators, all them?An alternative hypothesis presented explored, according which contribute truth conditions sentence, functions at discursive level. Specifically, proposed expectation remain valid discourse flows. That is, bemhas function making occurs persistent. best dynamic semantics. In semantics, its Context Change Potential, capability update information context (or state) relative asserted. The provides answer aforementioned questions. Epistemic conveyed expressing reason some, all, linked type state described each sentence. As predicted cannot inference arises particular maintained new gathered.