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'Entailment' can be said in many ways. In the present paper, we sketch a linguistic theory which motivates taking 'A entails B' to mean 'commitment to A is, in part, commitment to B', and we present four formal systems designed to capture this concept. These four systems turn out (somewhat surprisingly) to be the strict implicational fragments of the modal(More)
In 'The Logical Structure of Linguistic Commitment I " (The Journal of Philovophicul Logic 23 (1994). 369400), we sketch a linguistic theory (inspired by Brandom's Making it Explicit) which includes an " exprcssivist " account of the implication connective,-+: the role of + is to " make explicit " the inferential proprieties among possible commitments which(More)