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Graduate Program in Logic and Metaphysics (PPGLM), Federal University of Rio de Janeiro 

Former full professor of the Federal Universities of Paraná (UFPR), Mathematics,  and Santa Catarina (UFSC), Philosophy.

Researcher of the Brazilian National Council for Scientific and Technological Development (CNPq), level  PQ1A.

Member of AIPS -  Académie Internationale de Philosophie des Sciences 

Member of CLE - Center for Logic, Epistemology and History of Science, UNICAMP/SP.

Member of the Brazilian Academy of Philosophy, ABF.

and of other scientific societies such as SBL and  AFHIC.