H. rejects the inductive interpretation of the paradigm of contextual implication (to say 'p' is to imply that one believes that p), and proposes an alternative model according to which a speaker, in making a statement, contextually implies whatever one is entitled to infer on the basis of the presumption that his act of stating is normal. Thus contextual implication depends on a given context, presumptions of normality, and rules for the correct use of expressions.