The title of this paper may seem presumptuous. But I have chosen it anyway, as a signal of what I see as the central insight that recent studies of presuppo-sition in natural language have given us. Presuppositions are not what early discussions suggested and later ones have, I feel, still done too little to explicitly refute: obstacles to logical transparence, logical simplicity or well-deened...

There are two foundational questions to ask about presupposition: What is it? And where does it come from? The philosophical work which has most influenced linguists' understanding of presupposition is that of Robert Stalnaker (Stalnaker 1973, 1974, 2002). One aspect of Stalnaker's work on presupposition is an attempt to decouple these two questions. Stalnaker does this by providing a character...

Presupposition relations between verbs are not very well covered in existing lexical semantic resources. We propose a weakly supervised algorithm for learning presupposition relations between verbs that distinguishes five semantic relations: presupposition, entailment, temporal inclusion, antonymy and other/no relation. We start with a number of seed verb pairs selected manually for each semant...

To address complications involving ambiguity, presupposition and implicature, three processes underlying natural language interpretation are isolated: translation, entailment and attunement. A meta-language integrating these processes is outlined, elaborating on a proof-theoretic approach to presupposition. §

Many current pragmatic approaches to presupposition, beginning at least with Stalnaker (1974), are based on a notion of felicity. Presuppositions are requirements a sentence places upon a context for an utterance of that sentence to be felicitous. These requirements in turn are induced by the presence of certain presupposition triggers, such as lexical items like factive verbs, or constructions...