Abstract

Responding to parts of Sorensen, it is argued that the connectives therefore and but do not contribute conventional implicatures, but are rather to be treated as presupposition triggers. Their special contributions are therefore not asserted, but presupposed. Hence, given the generic assumption that one lies only if one makes an assertion, one cannot lie with arguments in the way Sorensen proposes. Yet, since conventional implicatures are asserted, one can lie with conventional implicatures. Moreover, since conventional implicatures may be asserted by non-declarative utterances, one can lie by uttering non-declaratives carrying conventional implicatures.