Shahid Rahman: Full-professor (classe exceptionnelle) of logic and epistemology at the Université de Lille-Nord-pas-de-Calais, Sciences Humaines et Sociales. He is also researcher at the UMR-CNRS 8163: STL. . Member (2016-2018) of the Conseil Scientifique du Réseau national des Maisons des Sciences de l'Homme. Member of the commission of the Institute Eric Weil, Director (for the French side) of the ANR-DFG Franco-German project 2012-2015 (Lille (MESHS)/Konstanz, Prof M. Armgardt): Théorie du Droit et Logique/Jurisprudenz und Logik. Studies: Masters in Philosophy, Mathematics, Philology (Erlangen-Nürnberg Universität) 1986-1989; PhD in Philosophy, Psychology, Philology , thesis on dialogical logic and constructive mathematics, 1990-1993; Habilitation in Philosophy (for the grade of professor), Universität des Saarlandes, 1994-1997. Professional Experience: Wissenschatlicher Mitarbeiter, Universität des Saarlandes, 1996-98. Researcher at the Max-Planck Institut für Informatik and at the Deutsches Forschungszentrum für Künstliche Intelligenz 1997-2000. Acting Director of the Department of Philosophy, Universität des Saarlandes, 1999. Prof. Rahman works span both philosophy of logic and its history, including a dialogical perspective on Constructive Type Theory. In fact, he is the leading researcher in the field of the dialogical conception of logic to which he contributed with publications in, among other fields, non-classical logics, legal reasoning, Aristotle, Arabic Logic and Epistemology. 

Muhammad Iqbal: Lecturer at Universitas Islam Negeri Antasari, Banjarmasin Indonesia. PhD student in philosophy at the UMR-CNRS 8163:STL., Université de Lille-Nord-pas-de-Calais, Sciences Humaines et Sociales. His main interests are, Islamic Law, Logic and Epistemology.