Jose Acacio de Barros
Department of Philosophy, San Francisco State University, United States
"Contextuality in Physics and Language"


Itala D'Ottaviano
Center of Logic, State University of Campinas and Brazilian Academy of Philosophy, Brazil
"Galois Pairs with Modal Operators of the Paraconsitent Logic J3"



Gregory Chaitin
Department of Computation, Federal University of Rio de Janeiro, Brazil
"Francisco Doria: exceptional thinker and good friend; or why I immigrated to Brazil"


Petrucio Viana
Department of Mathematics, Federal Fluminense University, Niteroi, Brazil
"On axiomatizations of the arithmetics of natural numbers"


Antonio Marmo da Cunha Oliveira
Department of Philosophy, Federal University of Rio de Janeiro, Brazil
"Problems with Half-Truths - And What They Do (Not) Mean"


Manuel Doria
C0PPE / PEP, Federal University of Rio de Janeiro, Brazil
"Strangers In A Strange Land? Scale Relativity Of Ontology And The Possibility Of Naïve Realism"


Mario Novello
Brazilian Center for Research in Physics, Rio de Janeiro, Brazil
"Topological Invariants and Accelerating Expansion of the Universe"

Sami Ibrahim Alsuwailem
Islamic Research and Training Institute, Islamic Development Bank, Jeddah, Saudi Arabia
"Gödelian Rationality"


Jean Yves Beziau
Department of Philosophy, Federal University of Rio de Janeiro and Brazilian Academy of Philosophy, Brazil
"What is an Axiom?"


Mauricio Kritz
National Laboratory for Scientific Computing, Petrópolis, Brazil
"Revisiting the systemic 50’s, from a present-day, organisational, perspective"


Francisco Antonio Doria
Department of Computation, Federal University of Rio de Janeiro and Brazilian Academy of Philosophy, Brazil
"The Chaitin--Thorp theorem"


Hermann Hauesler
Department of Informatics, Pontifical Catholic University of Rio de Janeiro, Brazil
"Huge propositional proofs are redundant "


João Ricardo Barroca Mendes
Department of Computation, Federal University of Rio de Janeiro, Brazil
"The Satisfaction Conception of Truth"


Luiz Carlos Garcia de Andrade
Department of Theoretical Physics, State University of Rio de Janeiro, Brazil
"Helical Magnetic Fields with Torsion"


Alexandre Rademaker
IBM Research and Getulio Vargas Foundation, Rio de Janeiro, Brazil
"On How Kelsenian Jurisprudence and Intuitionistic Logic help to avoid Contrary-to-Duty paradoxes in Legal Ontologies"