Identification of Formal Fallacies in a Natural Dialogue

This paper is a continuation of the work [26] in which the LND dialogue system was proposed. LND reconstructs the dialogical logic introduced by Lorenzen using the terminology of persuasion dialogue games as specified by Prakken [18]. The aim of the LND system is to recognize formal fallacies in natural dialogues and remove them. Now we extend this system to include a new protocol enabling the reconstruction of natural dialogues in which parties can commit formal fallacies. We then present the implementation of the protocols applied.