 Following Grice, “conversational implicature” was defined in  §2  to mean an implicature that depends on features of the conversational context and is not determined by the conventional meaning of the sentence uttered. On this definition, Grice’s Theoretical Definition and Calculability are empirical hypotheses that may turn out to be false. Indeed, we will review evidence against these hypotheses below. Many linguists and philosophers, however, take Calculability to be true by definition. They take “conversational implicature” to mean an implicature that can be worked out from what is said and the Cooperative Principle or its  maxims.[32]  If this definition is adopted, then what the evidence would show is that the implicatures illustrated in  §§1–4  are not conversational, even those that are not conventional in Grice’s sense (cf. Lepore &amp; Stone 2015: 6, 83, 148).