The Brazilian Logic Society (SBL) was founded on February 14th, 1979, in a meeting on the Instituto de Matemática, Estatística e Computação Científica (IMECC) of the Universidade Estadual de Campinas (UNICAMP), chaired by Prof. Oswaldo Porchat Pereira.
Directors
2023-2025
- President: Hugo Mariano (USP)
- 1st Vice-President: Samuel Gomes da Silva (UFBA)
- 2nd Vice-President: Bruno Lopes (UFF)
- General Secretary: Evelyn Erickson (UFRN)
- 2nd Secretary: Marlo Souza (UFBA)
- Treasurer: Elaine Pimentel (UFRN)
2021-2023
- President: Elaine Gouvêa Pimentel (UFRN)
- 1st Vice-President: Evandro Luís Gomes (UEM)
- 2nd Vice-President: Edward Hermann Haeusler (PUC-Rio)
- General Secretary: Valeria de Paiva (Topos Institute)
- 2nd Secretary: Petrucio Viana (UFF)
- Treasurer: Renata Wassermann (USP)
2019-2021
- President: Cezar Mortari (UFSC)
- 1st Vice-President: Juliana Bueno-Soler (UNICAMP)
- 2nd Vice-President: Samuel Gomes da Silva (UFBA)
- General Secretary: Bruno Lopes (UFF)
- 2nd Secretary: Cláudia Nalon (UnB)
- Treasurer: Cassiano Terra Rodrigues (ITA)
2017-2019
- President: Cezar Mortari (UFSC)
- 1st Vice-President: Juliana Bueno-Soler (UNICAMP)
- 2nd Vice-President: Samuel Gomes da Silva (UFBA)
- General Secretary: Bruno Lopes (UFF)
- 2nd Secretary: Cláudia Nalon (UnB)
- Treasurer: Cassiano Terra Rodrigues (ITA)
2014-2016
- President: Marcelo Esteban Coniglio (UNICAMP)
- 1st Vice-President: Jean-Yves Béziau (UFRJ)
- 2nd Vice-President: João Marcos (UFRN)
- General Secretary: Samuel Gomes da Silva (UFBA)
- 2nd Secretary: Frank Thomas Sautter (UFSM)
- Tesoureira: Juliana Bueno-Soler (UNICAMP)
2011-2013
- President: Itala M. L. D'Ottaviano (UNICAMP)
- 1st Vice-President: Maria da Paz Nunes de Medeiros (UFRN)
- 2nd Vice-President: Wagner de Campos Sanz (UFG)
- General Secretary: Samuel Gomes da Silva (UFBA)
- 2nd Secretary: Jean-Yves Béziau (UFRJ)
- Treasurer: Marcelo Esteban Coniglio (UNICAMP)
2008-2010
- President: Walter Alexandre Carnielli (UNICAMP)
- 1st Vice-President: Edward Hermann Haeusler (PUC-Rio)
- 2nd Vice-President: Hércules de Araújo Feitosa (UNESP)
- General Secretary: Marcelo Esteban Coniglio (UNICAMP)
- 2nd Secretary: Daniel Durante Alves (UFRN)
- Treasurer: Itala M. L. D'Ottaviano (UNICAMP)
2006-2008
- President: Walter Alexandre Carnielli (UNICAMP)
- 1st Vice-President: Décio Krause (UFSC)
- 2nd Vice-President: Frank Thomas Sautter (UFSM)
- General Secretary: Marcelo Esteban Coniglio (UNICAMP)
- 2nd Secretary: Mário Benevides (UFRJ)
- Treasurer: Itala M. L. D'Ottaviano (UNICAMP)
2003-2006
- President: Oswaldo Chateaubriand Filho (PUC-Rio)
- 1st Vice-President: Jairo José da Silva (UNESP)
- 2nd Vice-President: José Carlos Cifuentes (UFPR)
- General Secretary: Luiz Carlos Pereira (PUC-Rio)
- 2nd Secretary: Marcelo Esteban Coniglio (UNICAMP)
- Treasurer: Edward Hermann Haeusler (PUC-Rio)
1999-2003
- President: Itala M. L. D'Ottaviano (UNICAMP)
- 1st Vice-President: Paulo Augusto da Silva Veloso (PUC-Rio)
- 2nd Vice-President: Francisco Miraglia (USP)
- General Secretary: Jairo José da Silva (UNESP)
- 2nd Secretary: Luiz Carlos Pereira (PUC-Rio)
- Treasurer: Marcelo Esteban Coniglio (UNICAMP)
1996-1998
- President: Itala M. L. D'Ottaviano (UNICAMP)
- 1st Vice-President: Paulo Augusto da Silva Veloso (PUC-Rio)
- 2nd Vice-President: Antonio Mário Antunes Sette (UNICAMP)
- General Secretary: Jairo José da Silva (UNESP)
- 2nd Secretary: Luiz Carlos Pereira (PUC-Rio)
- Treasurer: Elias Humberto Alves (UNESP)
1994-1995
- President: Itala M. L. D'Ottaviano (UNICAMP)
- 1st Vice-President: Edward Hermann Haeusler (PUC-Rio)
- 2nd Vice-President: Walter Alexandre Carnielli (UNICAMP)
- General Secretary: Mamede Lima Marques (UnB)
- 2nd Secretary: Décio Krause (UFSC)
- Treasurer: Cosme Damião Bastos Massi (UNESP)
1988-1993
- President: Newton C. A. da Costa (USP)
- 1st Vice-President: Luiz Carlos Pereira (PUC-Rio)
- General Secretary: Mineko Yamashida (PUC-SP)
- 2nd Secretary: Elias Humberto Alves (UNICAMP)
- Treasurer: Celina Aparecida Almeida Pereira Abar (PUC-Rio)
1985-1988
- President: Oswaldo Chateaubriand Filho (PUC-Rio)
- 1st Vice-President: Luiz Paulo de Alcântara (UNICAMP)
- 2nd Vice-President: Luiz Henrique Lopez dos Santos (USP)
- General Secretary: Paulo Augusto da Silva Veloso (PUC-Rio)
- 2nd Secretary: José Eduardo Moura (UFRN)
- Treasurer: Luiz Carlos Pereira (PUC-Rio)
1983-1984
- President: Roberto L. O. Signoli (UNICAMP)
- 1st Vice-President: Francisco Miraglia (USP)
- 2nd Vice-President: Paulo Augusto da Silva Veloso (PUC-Rio)
- General Secretary: Itala M. L. D'Ottaviano (UNICAMP)
- 2nd Secretary: Irineu Bicudo (UNESP)
- Treasurer: Luiz Paulo de Alcântara (UNICAMP)
1981-1982
- President: Ayda Ignez Arruda (UNICAMP)
- 1st Vice-President: Jacob Zimbarg Sobrinho (USP)
- General Secretary: Elias Humberto Alves (UNICAMP)
- 2nd Secretary: Itala M. L. D'Ottaviano (UNICAMP)
- Treasurer: Antonio Mário Sette (UNICAMP)
1979-1981 (Founding direction)
- President: Newton C. A. da Costa (USP)
- 1st Vice-President: Antonio Mário Antunes Sette (UFPE)
- 2nd Vice-President: Raul Ferreira Landim Filho (PUC-Rio)
- General Secretary: Ayda Ignez Arruda (UNICAMP)
- 2nd Secretary: Elias Humberto Alves (UNICAMP)
- Treasurer: Jacob Zimbarg Sobrinho (USP)