 This principle for assigning 1-intensions relies on the speaker’s ordinary ability to engage in object-level reasoning about combinations of hypotheses: given the assumption that the scenario description W is true, you’re asked to decide whether S must be true as well. If it’s incoherent to accept \((W\) &amp; not\(-S)\), your epistemic intension for S maps W to True, otherwise W is mapped to False. This epistemic assignment principle contrasts sharply with the contextualist principle. The contextualist approach requires us to engage in explicit meta-linguistic reasoning to interpret the expression ‘S’ as it’s used within the possible world W. On the epistemic approach, in contrast, an extension is assigned to ‘S’ on the basis of the subject’s own object-level reasoning using the expressions ‘W’ and ‘S’.