•  67
    The Limits of Explication
    Argumentation 16 (1): 47-57. 2002.
    Part of logic consists in uncovering ways in which logical processes of great universality and utility are over-extended, e.g., in the misguided search for the cause of everything. It is suggested here that the search for missing premises defined as premises that make a deduction out of every argument has its own limits of sense. While often useful, it is sometimes just wrongly used by requiring that the reconstructed argument have the same categorical conclusion as the original one; and sometim…Read more
  •  48
    The supercomputer as liar
    British Journal for the Philosophy of Science 13 (February): 313-314. 1962.
  •  43
    A sketch of the arguments for adding the logic of evaluation to the areas of argumentation that have been partly mapped and are worth further work by workers in rhetoric, argumentation, communication, critical thinking, and informal logic. Brief coverage of: the arguments that there cannot be any legitimate logic of evaluation; of the nature of evaluation ; and of the technical apparatus of evaluation logic.
  •  25
    Appearance and Reality
    Teaching Philosophy 1 (1): 99-101. 1975.
  •  24
    For further information please write: Conference 95 Mailstop 3G3 Center for Professional Development George Mason University (review)
    with Sharon Bailin, Robert H. Ennis, Maurice Finnochiaro, Alec Fisher, James Freeman, David Hitehcock, Matthew Lipman, Richard Paul, and Douglas Walton
    Argumentation 9 260. 1995.
  •  19
    What Are We Doing?
    Informal Logic 9 (1). 1987.
  •  15
    Fallacies of statistical substitution
    Argumentation 1 (3): 333-349. 1987.
    Fallacies are the ‘ideal types of improper inference’, named only because they represent a common or seductive error. Naming them facilitates identification (reducing ‘false negatives’ in argument evaluation), but increases the risk of false positives; it is essentially a cost-effectiveness issue whether to introduce a new name. Statistical fallacies include errors of elementary experimental design, but also conceptual confusions, e.g. of cause with correlation, of association with guilt, where …Read more
  •  13
  •  11
    with Alec Fisher, D. N. Walton, Marina Bondi, and Manfred Kienpointner
    Argumentation 16 515-517. 2002.
  •  11
    with Bruno Snell, Annette Baier, and James Moffett
    Thinking: The Journal of Philosophy for Children 6 (2): 27-28. 1985.
  •  1
    McGraw-Hill. 1976.
    The Aims of the Book 1. To improve your skill in analyzing and evaluating arguments and presentations of the kind you find in everyday discourse (news media, discussions, advertisements), textbooks, and lectures. 2. To improve your skill in presenting arguments, reports and instructions clearly and persuasively. 3. To improve your critical instincts, that is, your immediate judgments of your attitudes toward the communications and behavior of others and yourself, so that you consistently approac…Read more
  • The philosophical and pragmatic significance of informal logic
    Informal Logic: The First International Symposium. forthcoming.
  • Increasing Philosophy Enrollments and Appointments through Better Philosophy Teaching
    Proceedings and Addresses of the American Philosophical Association 50 (3): 232-234. 1977.