Media type: E-Article Title: Showdown at Truth-Value Gap: Burton-Roberts on presupposition Contributor: Horn, Laurence R. imprint: Cambridge University Press (CUP), 1990 Published in: Journal of Linguistics Language: English DOI: 10.1017/s0022226700014766 ISSN: 0022-2267; 1469-7742 Keywords: Linguistics and Language ; Philosophy ; Language and Linguistics Origination: Footnote: