Laurence R. Horn received his PhD from UCLA in 1972. His dissertation, On the semantic properties of logical operators in English, introduced scalar implicature. Since then, he has sought to extend the Gricean program for non-logical inference to a class of problems in the union (if not intersection) of logical and lexical semantics and the analysis of negation. Before joining the Yale faculty in 1981, he taught at UC Berkeley, USC, Wisconsin-Madison, and Aix-Marseille; at LSA Institutes at Stanford, UC Santa Cruz, Illinois, and Michigan State U; and at the LOT summer school at Utrecht. He is the author of A Natural History of Negation (Chicago, 1989; reissued with new introduction by CSLI, 2001) and of over 100 papers and handbook entries on negation, polarity, implicature, presupposition, grammatical variation, word meaning, lexicography, and lying. He edited The Expression of Negation (de Gruyter, 2010) and is a co-editor with Y. Kato of Negation and Polarity (Oxford, 2000), with G. Ward of The Handbook of Pragmatics (Blackwell-Wiley, 2004), with I. Kecskes of Explorations in Pragmatics (de Gruyter, 2007), with R. Zanuttini of Micro-Syntactic Variation in North American English (OUP, 2010), and with K. Turner of Pragmatics, Truth and Underspecification (Brill, 2018). With Raffaella Zanuttini and Jim Wood, he is a charter member of the Yale Grammatical Diversity Project. He was editor of the Garland/Routledge series of Outstanding Dissertations in Linguistics (1995-2005). A longtime member of the Linguistic Society of America and the American Dialect Society, he is an elected fellow of the LSA, served on the Executive Committee and chair of the Program Committee, and is a candidate for Vice-President/President-elect for 2020-2021. An autoportrait of his career can be found in the 2018 volume of the Annual Review of Linguistics.
