"However that may be, Aristotelian syllogistic concerned itself exclusively with monadic predicates. Hence it could not begin to investigate multiple quantification. And that is why it never got very far. None the less, the underlying grammar of Aristotle's logic did not in itself..

The list of katēgoriai presented at the start of Top. I 9 was traditionally interpreted as a version of the canonical Aristotelian list of categories, and as largely equivalent to the list we find in Categories 4. Accordingly, its first item, the ‘what it is’, was identified with the category of substance. This interpretation has been challenged by several scholars, all sharing the view that the ‘what it is’ in Top. I 9 cannot be substance, since it collects items belonging (...) to all Aristotelian categories (e. g. human being, colour, length). Rather, they say, it is a manner of predication – i. e. essential predication – and can only determine an ontologically miscellaneous class of items. Against this family of proposals, I argue afresh that the traditional interpretation is almost entirely correct. To this purpose, I take advantage of the distinction between kinds of predicate and kinds of predication. (shrink)

Neste artigo, propõe-se uma leitura das categorias no tratado aristotélico homônimo como um primeiro esboço de uma ontologia regional, centrada nas substâncias sensíveis. Tendo por foco substância, quantidade, qualidade, relativo, agir e sofrer, este trabalho busca expor as duas estratégias principais que Aristóteles parece empregar para chegar a uma lista das categorias: (a) características básicas, cuja satisfação ou não satisfação de cada uma determina a natureza categorial de cada item e (b) a propriedade única que caracteriza cada categoria em contraste (...) com todas as outras. São, então, feitas considerações para vincular esse primeiro esboço ontológico a temas discutidos nos livros Lambda e Zeta da Metafísica, de modo a sugerir as direções principais que a sua ontologia nova (e geral) seguirá ao evoluir para uma teoria unificada da substância. (shrink)

I provide a survey of the contents of the works belonging to Aristotle's Organon in order to define their nature, in the light of his declared intentions and of other indications (mainly internal ones) about his purposes. No unifying conception of logic can be found in them, such as the traditional one, suggested by the very title Organon, of logic as a methodology of demonstration. Logic for him can also be formal logic (represented in the main by the De Interpretatione), (...) axiomatized syllogistic (represented in the main by the Prior Analytics) and a methodology of dialectical and rhetorical discussion. The consequent lack of unity presented by those works does not exclude that both the set of works called Analytics and the set of works concerning dialectic (Topics and Sophistici Elenchi) form a unity, and that a certain priority is attributed to the analytics with respect to dialectic. (shrink)