 This tradition links dialogical logic with informal logic (or critical reasoning), which originated in the work of Perelman and Olbrechts-Tyteca (1958), and studies the underlying logical regularities of concrete dialogues. In this tradition figures Toulmin’s argumentation theory (Toulmin 1958), Barth and Krabbe’s theory of dialogue (Barth &amp; Krabbe 1982), Douglas Walton (1984), Ralph Johnson (1999), Woods’ argumentation theory (Woods 1989; Woods et al. 2000), and critical thinking (Anand Jayprakash Vaidya 2013, among others).