University of the Aegean, Greece
"On the logical grounds of Greek ethics"
University of Münster and Fernuniversität Hagen, Germany
"Ontological relativity, model theory, and philosophical issues"
Adam Mickiewicz University, Poznan, Poland
"Logic as a Basic Form of Politeness"
Hellenic Open University, Greece
"Mathematical reasoning and logical principles in ancient Greece"
Université de Montpellier | UM1 · Institut Montpelliérain Alexander Grothendieck
"The resolution of contradiction - A lever for developping logical-mathematical skills"
Université Paris Sorbonne France
"Formal Logic and natural languages : some interactions"
Federal University of Rio de Janeiro, Brazil
"The relativity of paraconsistency in science: Some reflections on different contradictions in scientific contexts"
Université Paris 8 Vincennes-Saint-Denis, LPPC, France
"Implication as representation"
Université Libre de Bruxelles, Belgique
"LDL Theory And Trans-Referential Modelization Of Russell Paradox"
ICAM Paris – Center for Ethics, Technology and Society (CETS)
School for Advanced Studies in Social Sciences (EHESS - GSPR)
One problem, two systems, four axioms"
Kean University, New Jersey, USA
"Christine Ladd-Franklin’s Life in Logic: Mathematics, Philosophy, Rapprochement"
Université de Lorraine, Nancy, France
"Kolmogorov and Voevodsky on the Scope of Logic"
University of Münster, Germany
"Computing with Diagrams"
Federal University of Rio de Janeiro, Brazil
"Is p and ¬p a contradiction?"