@article {Harman:1 July 1999::206, author = "Harman, Gilbert", title = "12. (Nonsolipsistic) Conceptual Role Semantics", journal = "Reasoning, Meaning, and Mind", volume = "1", year = "1 July 1999", abstract = "The use of symbols in calculation and other thinking is to be distinguished from the use of symbols in communication. Grice's analysis of speaker meaning fails for certain uses of symbols in calculation. Words and concepts have uses, not sentences or whole thoughts. Concepts have uses or functional roles in perception; inference and practical reasoning are to be understood in terms of ways an organism functions in relation to a presumed normal environment.", pages = "206-233(28)", url = "http://www.ingentaconnect.com/content/oso/22848/1999/00000001/00000001/art00016" }