ABSTRACT
E.W.Prior, R.Pargetter and F.Jackson, ‘Three theses about dispositions’, American Philosophy Quarterly, 1982. (Claims that dispositions must have causal bases, but are different from them, and are themselves causally inert. For further development see Prior’s Dispositions, Aberdeen UP, 1985.)
. In traditional SYLLOGISTIC logic the subject of a universal proposition (see QUANTIFIER WORDS for ‘universal’ and ‘particular’) and the predicate of a negative proposition are said to be distributed. This has been taken to mean that a universal proposition and a negative proposition say something about every member of the classes which their subject and predicate, respectively, denote. The laws or rules of distribution then say that in a valid SYLLOGISM the middle term must be distributed at least once, and any term distributed in the conclusion must be distributed in its premise.
