Accordo e disaccordo: prospettive logico-retoriche

[automatically translated] For more than 50 years argumentation theory has acquired a central role in the philosophical and linguistic reflection. As of 1958, the year they leave simultaneously but in a totally independent, the Treaty of argumentation Perelman and Olbrechts-Tyteca and The argument uses of S. Toulmin, there has, in fact, to a lock revaluation a logic of the argument that, as opposed to demonstrative logic Cartesian, recovers the centrality of notions of effectiveness, probably, the audience. Doxastic a logical, therefore, that, to use the terminology employed by Aristotle, applies to that which, being true or false, can be otherwise than it is. It is, in hindsight,