 Davidson’s position, conceived as an objection to Lewis, comes with three separate claims. First, as demonstrated in the case of malapropisms, antecedent knowledge of L prior to a given use may not be enough to reach successful communication, because “prior meanings” may not coincide between speaker and hearer and, thus, antecedent knowledge is not mutual. Second, once the relevant use takes place, mutual knowledge of L is reached, which is enough to achieve communication, but such knowledge is not grasped antecedently. Third, the move from insufficient antecedent knowledge of L to successful communication may happen in virtue of non-linguistic knowledge (i.e., practical reasoning, explanatory reasoning, general knowledge, etc.), but this knowledge is not systematic.