The question ''Was 'existence' ever a predicate?" in a way already suggests its own answer, that this is really the wrong question to ask, because 'existence' has always been a predicate. Even those, such as Kant, who supposedly opposed this view, in fact held it. They merely denied that 'existence' is a "normal" first-order predicate. Not only Kant, but also Bolzano, Frege and Russell claimed that it is a second-order predicate. There is substantive disagreement between Kant and Bolzano on the (...) one hand and Frege and Russell on the other over two issues: the former claim that this second-order predicate apphes to no concept analytically and that it can be properly ascribed to a singular concept, whereas the latter deny both of these claims. (shrink)
This discussion note deals with Jurriaan de Haan's paper The Definition of Moral Dilemmas: A Logical Problem (Ethical Theory and Moral Practice 4(3), 2001, pp. 267–284). In the first, critical part I will point out a confusion in the logical analysis of the paper in question. In the second, constructive part I will indicate how the analysis of moral dilemmas should proceed within the framework of a possible world semantics.
Bernard Bolzano's most fruitful invention was his method of variation. He used it in defining such fundamental logical concepts as logical consequence, analyticity and probability. The following three puzzles concerning this method of variation seem particularly worth considering, (i) How can we define the range of variation of an idea or the categorial conformity of two ideas without already using the concept of variation? This question was raised by Mark Siebel in his M. A. thesis, (ii) Why must we define (...) analyticity by means of (simultaneous or successive) variation of several ideas rather than by means of replacing a single idea? This problem is suggested by an example due to W.V.O. Quine, John R. Myhill and Benson Mates, (iii) Must every 'there is ...' sentence be synthetic for Bolzano, as his pupil Franz Příhonský claims in his booklet Neuer Anti-Kant, or can a 'there is...' sentence be logically analytic? (shrink)
The first part of this paper summarizes what I take to be the most important doctrines of Brentano's philosophy. The second part investigates the possible meanings of the term 'Austrian philosophy'. The third part attempts to say something about Brentano's place in Austrian philosophy -- whatever that may be --, while the fourth part focuses on a problem in which I am especially interested. The paper closes with a proposal for what the expression 'Austrian philosophy' could mean.
Zusammenfassung Nicht nur in der Alltagssprache, sondern auch in der Sprache des Wissenschaftlers spielt die Verwendung von Superlativen eine wichtige Rolle. Für gewöhnlich geht man dabei vom jeweiligen Komparativ aus und führt hernach den dazugehörigen Superlativ ein. Für die Definition des Superlativs mit Hilfe des entsprechenden Komparativs kommen jedoch mehrere Möglichkeiten in Betracht, welche genau auseinandergehalten werden müssen; die Unterschiede, die sich dabei ergeben, sollen hier im einzelnen herausgearbeitet werden.
