DIAS-STP-04-19 Zero is not a Four-Letter Word: Studies in the Evolution of Language. M. Nicolau, C. Ryan & C. Stephens This preprint is available for download : Portable Document Format (Size: 172K) Postscript (Size: 764K) To obtain copies of any of the preprints in the archives, please contact us and specify the preprint number(s), author(s), … Continue reading 2004-19 – Zero is not a Four-Letter Word: Studies in the Evolution of Language.