Six experiments explored the hypothesis that the members of categories which are considered most prototypical are those with most attributes in common with other members of the category and least attributes in common with other categories. In probabilistic terms, the hypothesis is that prototypicality is a function of the total cue validity of the attributes of items. In Experiments 1 and 3, subjects listed attributes for members of semantic categories which had been previously rated for degree of prototypicality. High positive (...) correlations were obtained between those ratings and the extent of distribution of an item's attributes among the other items of the category. In Experiments 2 and 4, subjects listed superordinates of category members and listed attributes of members of contrasting categories. Negative correlations were obtained between prototypicality and superordinates other than the category in question and between prototypicality and an item's possession of attributes possessed by members of contrasting categories. Experiments 5 and 6 used artificial categories and showed that family resemblance within categories and lack of overlap of elements with contrasting categories were correlated with ease of learning, reaction time in identifying an item after learning, and rating of prototypicality of an item. It is argued that family resemblance offers an alternative to criterial features in defining categories. (shrink)

The purpose of this paper is to briefly describe and compare the original goals and perspectives of both rhetoric and dialectic in theory and in practice. Dialectic is the practice and theory of conversations; rhetoric that of speeches. For theory of dialectic, this paper will turn to Aristotle's Topics and Sophistical Refutations; for theory of rhetoric, to his Rhetoric. Thus it will appear that rhetoric and dialectic are pretty close. Yet, on the other hand, there is a long tradition of (...) mutual antagonism. The paper tries to summarize the common features of, as well as the differences between, the two. To get a taste of both dialectic and rhetoric in practice the reader is invited to enter the House of Callias, as we know it from Plato's Protagoras. After this visit there remains no doubt that rhetoric and dialectic are intertwined on the level of practice. Moreover, we may look forward to their integration on the level of theory. (shrink)

§ 1. Begriff der juristischen Logik 1. Wenn im folgenden von juristischer Logik und einigen ihrer Probleme die Rede sein soll, so bedarf es zunächst einer Angabe dessen, was im Zu sammenhang dieser Untersuchungen unter Logik verstanden wird. Der Aus druck Logik wird im Rahmen der Philosophie sowohl als auch innerhalb der Einzelwissenschaften in mehreren, oftmals erheblich voneinander abweichen den Bedeutungen verwandt. Der Sprachgebrauch ist sogar derart schillernd, daß einer scharfen Definition, sofern sie sich an den üblichen Sprachgebrauch anschließen soll, (...) nicht unerhebliche Schwierigkeiten im Wege stehen, denn bekanntlich spricht man von materialer, formaler, transzendentaler, regio naler, reiner, angewandter, theoretischer, praktischer, hermeneutischer, rea ler, natürlicher, klassischer und moderner Logik, um nur einige der zahl 1 reichen Wortverknüpfungen herauszugreifen • Für die hier anzustellenden Überlegungen vereinfacht sich jedoch die Frage nach einer passenden Definition. Während nämlich die Ansichten darüber, was man etwa unter materialer oder transzendentaler Logik zu verstehen habe, weitgehend divergieren, gilt für den Begriff der formalen Logik cum grano salis das Gegenteil. (shrink)

This paper deals with what has been called "ars inveniendi" (’art of finding‘) in antiquity, medieval and early modern times. A survey of different techniques of finding tenable and relevant arguments is presented (among them, the Topical tradition, Status theory, Debate theory, Encyclopedic systems, Creativity techniques). Their advantages and disadvantages are critically compared. It is suggested that a mixture of strategies of finding arguments should be used. Finally, a few remarks showing the relationship beween the strategies of finding arguments and (...) creativity in general are given. (shrink)

Showing che importance of art dialectic to science is attempted in this article, at the same time a confusion between them is avoided. To this aim fist, a bríef vision of the characters of science is offered. Then, the essentials characters of dialectic and its divers uses are examined. As a conclusion, it tries to bring to light how the dialectic technique, without giving scientific knowledge at all, is an essential scientific tool.

In his works on argumentation, Aristotle develops three main forms: apodeictical, dialectical, and rhetorical argumentation; dialectic is subdivided into several subspecies. The purpose of this paper is to discuss all of the forms described by Aristotle, to examine their differences and to point out their interrelations. This leads to an examination of the differentiating criteria and their applicability in the case of each argumentation form—and in particular to the question regarding the number of criteria that are necessary to describe each (...) form clearly and unambiguously. It is argued that Aristotle’s works on argumentation contain an implicit system of argumentation forms that is based on no more than three criteria. (shrink)

v. 1. Nicomachean ethics. Politics. The Athenian Constitution. Rhetoric. On Poetics.--v. 2. Logic.--v. 3. Physics. Metaphysics. On the soul. Short physical treaties.--v. 4. On the heavens. On generation and corruption. Meteorology. Biological treatises.

This paper deals with the essence of the dialectic. Dialectic is not identified with any of the dialogue forms, nor implies dialogue, although the díverse ways of conversation make use of her. The important rol of the dialectic in demonstratve science is also indicated.

Malgre des commentaires deja fort nombreux sur Aristote, le present ouvrage se propose de donner une introduction originale a ce monument de la philosophie. Ne s'engageant pas dans les debats traditionnels sur le statut de l'oeurve d'Aristote, l'auteur, qui se presente comme un historien de la philosophie, a pour projet de restituer les originalites de cette oeuvre plurielle, sans la travestir par une lecture anachronique qui ferait perdre la lettre de texte. Il etudie ainsi le corpus aristotelicien selon diverses approches (...) a la fois systematiques et genetiques. Destinee a un large public, cette introduction claire et complete permet de s'initier aux problemes qui jalonnent cette oeuvre, dont l'unite est difficile a cerner. (shrink)

v. 1. Science.--v. 2. Ethics and politics.--v. 3. Metaphysics.--v. 4. Psychology & aesthetics.

This work provides some interesting new results on the notion of the topos and the theory of hypothetical syllogisms in Aristotle based on an incisive interpretation of Aristotle's _Topics_ and certain passages of the _Analytics_.

This volume contains the Great Ethics together with the Eudemian Ethics, the Politics and the Economics. The translations of Aristotle by Taylor are unique amongst those of modern times because Thomas Taylor was convinced - as were the neoplatonists of late antiquity - that Aristotle should be read and understood as a Platonist rather than as a dissenter from his teacher.