SyntheseApril 1986, Volume 67, Issue 1, pp 1–2 | Cite asIntroductionAuthorsAuthors and affiliationsRichard M. BurianJoseph C. PittArticle 29 Downloads This is a preview of subscription content, log in to check access.Copyright information© D. Reidel Publishing Company 1986Authors and AffiliationsRichard M. Burian1Joseph C. Pitt11.Dept. of PhilosophyVirginia Polytechnic Institute and State UniversityBlacksburgUSA