Abstract
The paper argues that the correct definition of lying is that to lie is to assert
something one believes to be false, where assertion is understood in terms of the
notion of the common ground of a conversation. It is shown that this definition
makes the right predictions for a number of cases involving irony, joking, and
false implicature. In addition, the proposed account does not assume that intending to deceive is a necessary condition on lying, and hence counts so-called
bald-faced lies as lies