Sign Levels : Springer : 9781402030796 : 1402030797 : 20 Oct 2004 : Since the revolution in philosophic method that began about a century ago, the focus of philosophic attention has been on language as used both in daily conversation and in specialized institutional activities such as science, law, and the arts. But language is an extremely complex and varied means of communication, and the study of it has been increasingly incorporated into such empirical disciplines as linguistics, psycho linguistics, and cognitive psychology. It is becoming less clear what aspects of language remain as proper subjects of philosophical study, what are to be "kicked upstairs" (J. L. Austin's phrase) to the sciences. This work is a study of those logical features of language that remain central to philosophy after completion of kicking up. It conducts this study by describing similarities and differences between signs at differing levels, starting with natural events as primitive signs in the environme