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With Olímpia Lombardi and Roberto Torretti, Santiago-Chile, 2015.
With Olímpia Lombardi and Roberto Torretti, Santiago-Chile, 2015.
With Sir Roger Penrose, Nobel Prize for Physics 2020. Oxford 2008.
With Sir Roger Penrose, Nobel Prize for Physics 2020. Oxford 2008.
CNPq, Brasília 2014.
CNPq, Brasília 2014.
DK, Marcos Nobre, Marco Zingano, Ergar Marques, Lia Levy.
DK, Marcos Nobre, Marco Zingano, Ergar Marques, Lia Levy.
With Steven French, Oxford 2008.
With Steven French, Oxford 2008.
Marcelo Coniglio, DK,Christian de Ronde, Jean-Yves Béziau, 2015.
Marcelo Coniglio, DK,Christian de Ronde, Jean-Yves Béziau, 2015.
M.L.Dalla Chiara, DK, F.A.Doria,Sergio Bernini,A.Cantini & P. Minari
M.L.Dalla Chiara, DK, F.A.Doria,Sergio Bernini,A.Cantini & P. Minari
(behind, a painting of Saint Joseph of Cupertino)
UN. Florença, 1992.
UN. Florença, 1992.
Cagliari, 2014.
Cagliari, 2014.
D. Krause & Enrico Beltrametti, Cagliari, IT, 2014.
D. Krause & Enrico Beltrametti, Cagliari, IT, 2014.
D.Krause & Boris Grozdanov, Un. Oxford, 2008
D.Krause & Boris Grozdanov, Un. Oxford, 2008
"Mathematical bridge", Cambridge, UK, 2008.
"Mathematical bridge", Cambridge, UK, 2008.
Otávio Bueno, Jeff Barret, DK, Chris de Ronde, Jonas Arenhart, 2015.
Otávio Bueno, Jeff Barret, DK, Chris de Ronde, Jonas Arenhart, 2015.
With my students, 2017.
With my students, 2017.
With Acácio J. de Barros, 2017.
With Acácio J. de Barros, 2017.
With Timothy Williamson, 2014.
With Timothy Williamson, 2014.
Julio Stern, Jonas Arenhart, Otávio Bueno, Kherian Gracher, Marcelo Coniglio, Jean-Yves Béziau, DK, Newton da Costa, Christian de Ronde
With Cesar Lorenzano, 2014.
With Cesar Lorenzano, 2014.
1 Prêmio Newton da Costa de Lógica, 2016.
1 Prêmio Newton da Costa de Lógica, 2016.
Marcelo Coniglio, Ítala D'Ottaviano, Newton da Costa, Rodrigo Freire, Jean-Yves Béziau, DK.
Jonas Arenhart, Jaison Schinaider, Valéria Gradinar, DK.
Jonas Arenhart, Jaison Schinaider, Valéria Gradinar, DK.
With Maria Luisa Dalla Chiara, Cagliari, 2014
With Maria Luisa Dalla Chiara, Cagliari, 2014
Estoril, Portugal, 2010.
Estoril, Portugal, 2010.
Talk in Buenos Aires, 2010.
Talk in Buenos Aires, 2010.
Curitiba, 1978.
Edson Farah, DK, Newton da Costa, Curitiba 1995.
Paris, 2012
Praying in Dublin.
With Ivens J. Fontoura. Argentina, 1978.
Florence 1996 - Roberto Giuntini, Maria Luisa Dalla Chiara, DK, Giovanna Corsi and Federico Laudisa.
Nelson Papávero, Newton da Costa, João C. M. Magalhães, Newton Freire-Maia, DK. UFPR 2000.
Santiago 2022 - Third Chilean Conference on the Philosophy of Physics
With Professor Leo Barsotti. Curitiba, 2008.
Linear Algebra for Chemical Engineering. UFPR 1980
USP 1987 - DK, Newton da Costa, Celina Abar, Raimundo Nonato, Mineko Yamashita, Andréa Loparic, Leila Puga, Jorge Visintenier.
Curitiba 1998 - Mercedes Krause, Newton da Costa, DK.
Florianópolis, 2021 - Otávio Bueno, Jonas Arenhart,DK, Cezar Mortari, Kherian Gracher.
With Valia Allori. Santiago 2022.
Rio de Janeiro 2022 - With ex-PhD students Felix Pinheiro, Raoni Arroyo, Kherian Gracher
With Patrick Suppes, 2002.
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